Doc string (and defcustom type) fix for grep-find-command

* lisp/progmodes/grep.el (grep-find-command): Add the cons type to
the defcustom, and document it (bug#36113).  (It has always been a
valid value for the variable.)

1 files changed, 7 insertions, 1 deletions

diff --git a/lisp/progmodes/grep.el b/lisp/progmodes/grep.el
index 7731be59659..287f43d358c 100644
--- a/lisp/progmodes/grep.el
+++ b/lisp/progmodes/grep.el
@@ -168,8 +168,14 @@ This is done to disambiguate file names in `grep's output."
   "The default find command for \\[grep-find].
 In interactive usage, the actual value of this variable is set up
 by `grep-compute-defaults'; to change the default value, use
-\\[customize] or call the function `grep-apply-setting'."
+\\[customize] or call the function `grep-apply-setting'.
+
+This variable can either be a string, or a cons on the
+form (COMMAND . POSITION).  In the latter case, COMMAND will be
+used as the default command, and point will be placed on POSITION
+for easier editing."
   :type '(choice string
+                 (cons string integer)
 		 (const :tag "Not Set" nil))
   :set #'grep-apply-setting)