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-rw-r--r--lisp/flow-ctrl.el13
1 files changed, 6 insertions, 7 deletions
diff --git a/lisp/flow-ctrl.el b/lisp/flow-ctrl.el
index 656edf2eb09..adb52d7253a 100644
--- a/lisp/flow-ctrl.el
+++ b/lisp/flow-ctrl.el
@@ -1,4 +1,4 @@
-;;; flow-ctrl.el --- help for lusers on cu(1) or ttys with wired-in ^S/^Q flow control
+;;; flow-ctrl.el --- help for lusers on cu(1) or ttys with wired-in ^S/^Q flow control -*- lexical-binding: t -*-
;; Copyright (C) 1990-1991, 1994, 2001-2021 Free Software Foundation,
;; Inc.
@@ -64,12 +64,11 @@ With arg, enable flow control mode if arg is positive, otherwise disable."
(progn
;; Turn flow control off, and stop exchanging chars.
(set-input-mode t nil (nth 2 (current-input-mode)))
- (if keyboard-translate-table
- (progn
- (aset keyboard-translate-table flow-control-c-s-replacement nil)
- (aset keyboard-translate-table ?\^s nil)
- (aset keyboard-translate-table flow-control-c-q-replacement nil)
- (aset keyboard-translate-table ?\^q nil))))
+ (when keyboard-translate-table
+ (aset keyboard-translate-table flow-control-c-s-replacement nil)
+ (aset keyboard-translate-table ?\^s nil)
+ (aset keyboard-translate-table flow-control-c-q-replacement nil)
+ (aset keyboard-translate-table ?\^q nil)))
;; Turn flow control on.
;; Tell emacs to pass C-s and C-q to OS.
(set-input-mode nil t (nth 2 (current-input-mode)))