Fix typos and minor wording issues in ELisp manual

* doc/lispref/internals.texi (Writing Emacs Primitives):
* doc/lispref/display.texi (Temporary Displays): Fix typos.
* doc/lispref/text.texi (Filling, Changing Properties)
(Transposition): Clarify and fix typos.
* doc/lispref/positions.texi (Screen Lines): Improve wording.
* doc/lispref/modes.texi (Minor Mode Conventions)
(Font Lock Multiline): Fix typos.
* doc/lispref/variables.texi (Dynamic Binding Tips): Fix a
cross-reference.  Fix a typo.
* doc/lispref/sequences.texi (Sequence Functions): Fix typos.
(Bug#31143)

1 files changed, 8 insertions, 7 deletions

diff --git a/doc/lispref/variables.texi b/doc/lispref/variables.texi
index 4d04335d83a..af1bed461c0 100644
--- a/doc/lispref/variables.texi
+++ b/doc/lispref/variables.texi
@@ -1004,12 +1004,13 @@ affect, nor be affected by, any uses of the same variable symbol
 elsewhere in the program.
 
 @item
-Otherwise, define the variable with @code{defvar}, @code{defconst}, or
-@code{defcustom}.  @xref{Defining Variables}.  Usually, the definition
-should be at top-level in an Emacs Lisp file.  As far as possible, it
-should include a documentation string which explains the meaning and
-purpose of the variable.  You should also choose the variable's name
-to avoid name conflicts (@pxref{Coding Conventions}).
+Otherwise, define the variable with @code{defvar}, @code{defconst}
+(@pxref{Defining Variables}), or @code{defcustom} (@pxref{Variable
+Definitions}).  Usually, the definition should be at top-level in an
+Emacs Lisp file.  As far as possible, it should include a
+documentation string which explains the meaning and purpose of the
+variable.  You should also choose the variable's name to avoid name
+conflicts (@pxref{Coding Conventions}).
 
 Then you can bind the variable anywhere in a program, knowing reliably
 what the effect will be.  Wherever you encounter the variable, it will
@@ -1024,7 +1025,7 @@ variables like @code{case-fold-search}:
 @group
 (defun search-for-abc ()
   "Search for the string \"abc\", ignoring case differences."
-  (let ((case-fold-search nil))
+  (let ((case-fold-search t))
     (re-search-forward "abc")))
 @end group
 @end example