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, 1 insertions, 1 deletions

diff --git a/lisp/emacs-lisp/smie.el b/lisp/emacs-lisp/smie.el
index 0c24f796d19..eb5a7132c7e 100644
--- a/lisp/emacs-lisp/smie.el
+++ b/lisp/emacs-lisp/smie.el
@@ -213,7 +213,7 @@ one of those elements share the same precedence level and associativity."
 (defun smie-bnf->prec2 (bnf &rest resolvers)
   "Convert the BNF grammar into a prec2 table.
 BNF is a list of nonterminal definitions of the form:
-  \(NONTERM RHS1 RHS2 ...)
+  (NONTERM RHS1 RHS2 ...)
 where each RHS is a (non-empty) list of terminals (aka tokens) or non-terminals.
 Not all grammars are accepted:
 - an RHS cannot be an empty list (this is not needed, since SMIE allows all