(describe_map_tree): Don't insert a double newline at the end of the string

Return whether we inserted something.  This should allow the caller to
decide whether to insert more newlines or not.

Fixes: debbugs:1169

1 files changed, 2 insertions, 2 deletions

diff --git a/src/keymap.h b/src/keymap.h
index 2b9d58b39dc..2c826b64e1f 100644
--- a/src/keymap.h
+++ b/src/keymap.h
@@ -36,8 +36,8 @@ EXFUN (Fcurrent_active_maps, 2);
 extern Lisp_Object access_keymap (Lisp_Object, Lisp_Object, int, int, int);
 extern Lisp_Object get_keymap (Lisp_Object, int, int);
 EXFUN (Fset_keymap_parent, 2);
-extern void describe_map_tree (Lisp_Object, int, Lisp_Object, Lisp_Object,
-                               const char *, int, int, int, int);
+extern int describe_map_tree (Lisp_Object, int, Lisp_Object, Lisp_Object,
+                              const char *, int, int, int, int);
 extern int current_minor_maps (Lisp_Object **, Lisp_Object **);
 extern void initial_define_key (Lisp_Object, int, const char *);
 extern void initial_define_lispy_key (Lisp_Object, const char *, const char *);