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-rw-r--r--lisp/emacs-lisp/benchmark.el3
1 files changed, 2 insertions, 1 deletions
diff --git a/lisp/emacs-lisp/benchmark.el b/lisp/emacs-lisp/benchmark.el
index 589e76eaec0..d74446c7479 100644
--- a/lisp/emacs-lisp/benchmark.el
+++ b/lisp/emacs-lisp/benchmark.el
@@ -98,7 +98,8 @@ result. The overhead of the `lambda's is accounted for."
;;;###autoload
(defun benchmark (repetitions form)
"Print the time taken for REPETITIONS executions of FORM.
-Interactively, REPETITIONS is taken from the prefix arg.
+Interactively, REPETITIONS is taken from the prefix arg, and
+the command prompts for the form to benchmark.
For non-interactive use see also `benchmark-run' and
`benchmark-run-compiled'."
(interactive "p\nxForm: ")