Backslash cleanup in Elisp source files

This patch should not change behavior.  It typically omits backslashes
where they are redundant (e.g., in the string literal "^\$").
In a few places, insert backslashes where they make regular
expressions clearer: e.g., replace "^\*" (equivalent to "^*") with
"^\\*", which has the same effect as a regular expression.
Also, use ‘\ %’ instead of ‘\%’ when avoiding confusion with SCCS IDs,
and similarly use ‘\ $’ instead of ‘\$’ when avoiding confusion with
RCS IDs, as that makes it clearer that the backslash is intended.

1 files changed, 2 insertions, 2 deletions

diff --git a/lisp/emacs-lisp/shadow.el b/lisp/emacs-lisp/shadow.el
index c7a95e4e5f3..17e3be7d3ff 100644
--- a/lisp/emacs-lisp/shadow.el
+++ b/lisp/emacs-lisp/shadow.el
@@ -68,9 +68,9 @@ This is slower, but filters out some innocuous shadowing."
   "Return a list of Emacs Lisp files that create shadows.
 This function does the work for `list-load-path-shadows'.
 
-We traverse PATH looking for shadows, and return a \(possibly empty\)
+We traverse PATH looking for shadows, and return a \(possibly empty)
 even-length list of files.  A file in this list at position 2i shadows
-the file in position 2i+1.  Emacs Lisp file suffixes \(.el and .elc\)
+the file in position 2i+1.  Emacs Lisp file suffixes \(.el and .elc)
 are stripped from the file names in the list.
 
 See the documentation for `list-load-path-shadows' for further information."