master f658b95: Improve doc string of 'M-.'

[Eli Zaretskii]

branch: master
commit f658b955ccf256d83917c9f94bdfee36b84105bf
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Improve doc string of 'M-.'
    
    * lisp/progmodes/xref.el (xref-find-definitions): Mention 'M-,' in
    the doc string.
---
 lisp/progmodes/xref.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/progmodes/xref.el b/lisp/progmodes/xref.el
index b6ad485..21f4abf 100644
--- a/lisp/progmodes/xref.el
+++ b/lisp/progmodes/xref.el
@@ -1309,7 +1309,9 @@ prompt for it.
 If sufficient information is available to determine a unique
 definition for IDENTIFIER, display it in the selected window.
 Otherwise, display the list of the possible definitions in a
-buffer where the user can select from the list."
+buffer where the user can select from the list.
+
+Use \\[xref-pop-marker-stack] to return back to where you invoked this 
command."
   (interactive (list (xref--read-identifier "Find definitions of: ")))
   (xref--find-definitions identifier nil))