Improve doc string of 'set-goal-column'

* lisp/simple.el (set-goal-column): Doc fix.  (Bug#23405)

1 files changed, 2 insertions, 1 deletions

diff --git a/lisp/simple.el b/lisp/simple.el
index 2a81ee745cb..d7743eea596 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -6406,7 +6406,8 @@ Those commands will move to this position in the line moved to
 rather than trying to keep the same horizontal position.
 With a non-nil argument ARG, clears out the goal column
 so that \\[next-line] and \\[previous-line] resume vertical motion.
-The goal column is stored in the variable `goal-column'."
+The goal column is stored in the variable `goal-column'.
+This is a buffer-local setting."
   (interactive "P")
   (if arg
       (progn