* lisp/progmodes/grep.el (rgrep): Fix docstring.

Instead of the incorrect key `M-c' produce the right key
with \\<read-regexp-map>\\[read-regexp-toggle-case-fold].

diff --git a/lisp/progmodes/grep.el b/lisp/progmodes/grep.el
index 0da16b44ddac20d41f26689899581cda3441a6e6..3fb16713cc19e2a95d184c92f0415d6fc68a1147 100644 (file)
--- a/lisp/progmodes/grep.el
+++ b/lisp/progmodes/grep.el
@@ -1236,9 +1236,10 @@ to specify a command to run.
 If CONFIRM is non-nil, the user will be given an opportunity to edit the
 command before it's run.
 
-Interactively, the user can use the \\`M-c' command while entering
-the regexp to indicate whether the grep should be case sensitive
-or not."
+Interactively, the user can use \
+\\<read-regexp-map>\\[read-regexp-toggle-case-fold] \
+while entering the regexp
+to indicate whether the grep should be case sensitive or not."
   (interactive
    (progn
      (grep-compute-defaults)