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-rw-r--r--src/keyboard.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/keyboard.c b/src/keyboard.c
index b20cd71d5dd..7bd2f1f2aea 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -3726,7 +3726,8 @@ DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0,
DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1,
"FOpen dribble file: ",
- "Start writing all keyboard characters to FILE.")
+ "Start writing all keyboard characters to a dribble file called FILE.\n\
+If FILE is nil, close any open dribble file.")
(file)
Lisp_Object file;
{