Merge from origin/emacs-26

0213c8b (origin/emacs-26) mwheel minor consistency fix
82f12b2 * src/window.c (Frecenter): Improve commentary.
04da8f4 Fix downloading non-text files in EWW
832b9ec ; Spelling fixes
dd88499 ; Spelling fixes
3968f72 Rename some mwheel options, for consistency
d6e78de * lisp/vc/add-log.el (add-change-log-entry): Replace obsolete...
5fe0387 Improve the Emacs manual
56ab8e3 * lisp/dired-aux.el (dired-do-create-files): Doc fix.  (Bug#3...

Conflicts:
	etc/NEWS
	lisp/mwheel.el

10 files changed, 43 insertions, 41 deletions

diff --git a/ChangeLog.3 b/ChangeLog.3
index f68ba58cacd..5b68559f430 100644
--- a/ChangeLog.3
+++ b/ChangeLog.3
@@ -20930,7 +20930,7 @@
 
 2017-04-24  Alan Third  <alan@idiocy.org>
 
-	Fix XBM colour rendering in NS port (bug#22060)
+	Fix XBM color rendering in NS port (bug#22060)
 
 	src/nsimage.m (setXBMColor): Fix calculation of xbm_fg.
 
@@ -38136,7 +38136,7 @@
 	                         ^
 
 	* src/frame.c (x_set_frame_parameters): Drop width_changed and
-	height_changed variables in favour of storing that information in
+	height_changed variables in favor of storing that information in
 	width and height variables.
 
 2016-09-12  Michal Nazarewicz  <mina86@mina86.com>
@@ -38193,7 +38193,7 @@
 
 	Refactor common code in {upcase,downcase,capitalize}-word functions
 
-	* src/casefiddle.c (operate_on_word): Removed in favour of…
+	* src/casefiddle.c (operate_on_word): Removed in favor of…
 	(casify_word) …new function which does what operate_on_word did plus
 	what all of the common code from *-word functions.
 	(upcase-word, downcase-word, capitalize-word): Move code common between
@@ -38418,9 +38418,9 @@
 	alphabeticp.  Because both of those functions require Unicode general
 	category lookup, this resulted in unnecessary lookups (if alphabeticp
 	return false decimalp had to perform another lookup).  Drop decimalnump
-	in favour of alphanumericp which combines decimelnump with alphabeticp.
+	in favor of alphanumericp which combines decimelnump with alphabeticp.
 
-	* src/character.c (decimalnump): Remove in favour of…
+	* src/character.c (decimalnump): Remove in favor of…
 	(alphanumericp): …new function.
 
 	* src/regex.c (ISALNUM): Use alphanumericp.
@@ -42329,9 +42329,9 @@
 
 	Enable dividers in NS (bug#22973)
 
-	src/nsfns.m: Add colour settings functions to ns_frame_park_handlers.
+	src/nsfns.m: Add color settings functions to ns_frame_park_handlers.
 	src/nsterm.m (ns_draw_window_divider): ns_focus has to go before the
-	attempt to set the colour.
+	attempt to set the color.
 	src/nsterm.m (ns_draw_vertical_window_border): This had the same bug as
 	above, although I didn't see any errors.
 
@@ -43563,10 +43563,10 @@
 
 2016-06-08  Michal Nazarewicz  <mina86@mina86.com>
 
-	Remove ‘ert-with-function-mocked’ macro in favour of ‘cl-letf’ macro
+	Remove ‘ert-with-function-mocked’ macro in favor of ‘cl-letf’ macro
 
 	* lisp/emacs-lisp/ert-x.el (ert-with-function-mocked): Remove macro
-	in favour of ‘cl-letf’ macro which is more generic.  All existing
+	in favor of ‘cl-letf’ macro which is more generic.  All existing
 	uses are migrated accordingly.  The macro has not been included in
 	an official release yet so it should be fine to delete it.
 
@@ -49635,7 +49635,7 @@
 
 2016-02-27  Jan Moringen  <jan.moringen@uni-bielefeld.de>
 
-	Show the face colours when completing in `read-color'
+	Show the face colors when completing in `read-color'
 
 	* lisp/faces.el (defined-colors-with-face-attributes): New function.
 	(readable-foreground-color, defined-colors-with-face-attributes)
diff --git a/doc/emacs/custom.texi b/doc/emacs/custom.texi
index 7d90c20a2a9..0905ae7bb12 100644
--- a/doc/emacs/custom.texi
+++ b/doc/emacs/custom.texi
@@ -1417,6 +1417,8 @@ commands, and @dfn{keymaps}, which record key bindings.  It also
 explains how to customize key bindings, which is done by editing your
 init file (@pxref{Init Rebinding}).
 
+@cindex reserved key bindings
+@cindex keys, reserved
   Since most modes define their own key bindings, activating a mode
 might override your custom key bindings.  A small number of keys are
 reserved for user-defined bindings, and should not be used by modes,
diff --git a/doc/emacs/frames.texi b/doc/emacs/frames.texi
index 17f6f35a8a3..11611e73516 100644
--- a/doc/emacs/frames.texi
+++ b/doc/emacs/frames.texi
@@ -207,13 +207,13 @@ buffers are scrolled.  The variable
 @code{mouse-wheel-progressive-speed} determines whether the scroll
 speed is linked to how fast you move the wheel.
 
-@vindex mwheel-tilt-scroll-p
-@vindex mwheel-flip-direction
+@vindex mouse-wheel-tilt-scroll
+@vindex mouse-wheel-flip-direction
 Emacs can also support horizontal scrolling if your mouse's wheel can
 be tilted.  This feature is off by default; the variable
-@code{mwheel-tilt-scroll-p} turns it on.  If you'd like to reverse the
-direction of horizontal scrolling, customize the variable
-@code{mwheel-flip-direction} to a non-@code{nil} value.
+@code{mouse-wheel-tilt-scroll} turns it on.  If you'd like to reverse
+the direction of horizontal scrolling, customize the variable
+@code{mouse-wheel-flip-direction} to a non-@code{nil} value.
 
 
 @node Word and Line Mouse
diff --git a/doc/emacs/xresources.texi b/doc/emacs/xresources.texi
index 8d0127f9103..db2c6ffafd2 100644
--- a/doc/emacs/xresources.texi
+++ b/doc/emacs/xresources.texi
@@ -138,9 +138,10 @@ specifications.
 @node Table of Resources
 @appendixsec Table of X Resources for Emacs
 
-  This table lists the X resource names that Emacs recognizes,
-excluding those that control the appearance of graphical widgets like
-the menu bar:
+  The table below lists the X resource names that Emacs recognizes.
+Note that some of the resources have no effect in Emacs compiled with
+various X toolkits (GTK+, Lucid, etc.)---we indicate below when this
+is the case.
 
 @table @asis
 @item @code{background} (class @code{Background})
diff --git a/etc/NEWS.26 b/etc/NEWS.26
index cb4048dee4a..eded00e6554 100644
--- a/etc/NEWS.26
+++ b/etc/NEWS.26
@@ -431,9 +431,9 @@ always restricting the margin to a quarter of the window.
 
 +++
 ** Emacs can scroll horizontally using mouse, touchpad, and trackbar.
-You can enable this by customizing 'mwheel-tilt-scroll-p'.  If you
+You can enable this by customizing 'mouse-wheel-tilt-scroll'.  If you
 want to reverse the direction of the scroll, customize
-'mwheel-flip-direction'.
+'mouse-wheel-flip-direction'.
 
 +++
 ** The default GnuTLS priority string now includes %DUMBFW.
diff --git a/lisp/dired-aux.el b/lisp/dired-aux.el
index b837fb4e5ea..e8b5e6755ea 100644
--- a/lisp/dired-aux.el
+++ b/lisp/dired-aux.el
@@ -1842,7 +1842,8 @@ Optional arg HOW-TO determines how to treat the target.
       rfn-list  - list of the relative names for the marked files.
       fn-list   - list of the absolute names for the marked files.
       target    - the name of the target itself.
-      The rest of into-dir are optional arguments.
+    The rest of elements of the list returned by HOW-TO are optional
+    arguments for the function that is the first element of the list.
    For any other return value, TARGET is treated as a directory."
   (or op1 (setq op1 operation))
   (let* ((fn-list (dired-get-marked-files nil arg nil nil t))
diff --git a/lisp/mwheel.el b/lisp/mwheel.el
index cbd78137622..44c4989ad06 100644
--- a/lisp/mwheel.el
+++ b/lisp/mwheel.el
@@ -150,30 +150,18 @@ This can be slightly disconcerting, but some people prefer it."
 
 ;;; For tilt-scroll
 ;;;
-(defcustom mwheel-tilt-scroll-p nil
+(defcustom mouse-wheel-tilt-scroll nil
   "Enable scroll using tilting mouse wheel."
   :group 'mouse
   :type 'boolean
   :version "26.1")
 
-(defcustom mwheel-flip-direction nil
+(defcustom mouse-wheel-flip-direction nil
   "Swap direction of 'wheel-right and 'wheel-left."
   :group 'mouse
   :type 'boolean
   :version "26.1")
 
-(defcustom mwheel-scroll-left-function 'scroll-left
-  "Function that does the job of scrolling left."
-  :group 'mouse
-  :type 'function
-  :version "26.1")
-
-(defcustom mwheel-scroll-right-function 'scroll-right
-  "Function that does the job of scrolling right."
-  :group 'mouse
-  :type 'function
-  :version "26.1")
-
 (eval-and-compile
   (if (fboundp 'event-button)
       (fset 'mwheel-event-button 'event-button)
@@ -211,6 +199,12 @@ This can be slightly disconcerting, but some people prefer it."
 (defvar mwheel-scroll-down-function 'scroll-down
   "Function that does the job of scrolling downward.")
 
+(defvar mwheel-scroll-left-function 'scroll-left
+  "Function that does the job of scrolling left.")
+
+(defvar mwheel-scroll-right-function 'scroll-right
+  "Function that does the job of scrolling right.")
+
 (defvar mouse-wheel-left-event
   (if (or (featurep 'w32-win) (featurep 'ns-win))
       'wheel-left
@@ -293,13 +287,13 @@ non-Windows systems."
                    ;; Make sure we do indeed scroll to the end of the buffer.
                    (end-of-buffer (while t (funcall mwheel-scroll-up-function)))))
                 ((eq button mouse-wheel-left-event) ; for tilt scroll
-                 (when mwheel-tilt-scroll-p
-                   (funcall (if mwheel-flip-direction
+                 (when mouse-wheel-tilt-scroll
+                   (funcall (if mouse-wheel-flip-direction
                                 mwheel-scroll-right-function
                               mwheel-scroll-left-function) amt)))
                 ((eq button mouse-wheel-right-event) ; for tilt scroll
-                 (when mwheel-tilt-scroll-p
-                   (funcall (if mwheel-flip-direction
+                 (when mouse-wheel-tilt-scroll
+                   (funcall (if mouse-wheel-flip-direction
                                 mwheel-scroll-left-function
                               mwheel-scroll-right-function) amt)))
 		(t (error "Bad binding in mwheel-scroll"))))
diff --git a/lisp/net/eww.el b/lisp/net/eww.el
index caac96a4859..66b1767b563 100644
--- a/lisp/net/eww.el
+++ b/lisp/net/eww.el
@@ -1532,7 +1532,8 @@ Differences in #targets are ignored."
                   eww-download-directory)))
       (goto-char (point-min))
       (re-search-forward "\r?\n\r?\n")
-      (write-region (point) (point-max) file)
+      (let ((coding-system-for-write 'no-conversion))
+        (write-region (point) (point-max) file))
       (message "Saved %s" file))))
 
 (defun eww-decode-url-file-name (string)
diff --git a/lisp/vc/add-log.el b/lisp/vc/add-log.el
index bc2be4aadb4..175c82f8c00 100644
--- a/lisp/vc/add-log.el
+++ b/lisp/vc/add-log.el
@@ -898,7 +898,7 @@ non-nil, otherwise in local time."
              (insert (if use-hard-newlines hard-newline "\n")
                      (if use-hard-newlines hard-newline "\n"))
              (forward-line -2)
-             (indent-relative-maybe))
+             (indent-relative-first-indent-point))
             (t
              ;; Make a new item.
              (while (looking-at "\\sW")
diff --git a/src/window.c b/src/window.c
index 08c3f32dff5..e6d0280d9b0 100644
--- a/src/window.c
+++ b/src/window.c
@@ -5923,6 +5923,9 @@ and redisplay normally--don't erase and redraw the frame.  */)
   EMACS_INT iarg UNINIT;
   int this_scroll_margin;
 
+  /* For reasons why we signal an error here, see
+     http://lists.gnu.org/archive/html/emacs-devel/2014-06/msg00053.html,
+     http://lists.gnu.org/archive/html/emacs-devel/2014-06/msg00094.html.  */
   if (buf != current_buffer)
     error ("`recenter'ing a window that does not display current-buffer.");