From 84f7231dfa0bceb8dba912c9b34a5f93109b9458 Mon Sep 17 00:00:00 2001
From: =?utf8?q?P=C3=A1draig=20Brady?= <P@draigBrady.com>
Date: Mon, 23 Oct 2017 23:26:33 -0700
Subject: [PATCH] maint: apply suggested cleanup to recent stty.c change

This should have been part of commit v8.28-17-gf926f7c
* src/stty.c (check_argument): Align line continuation chars,
and ensure the function macro is immune to usage with if/else.
Suggested by Jim Meyering and Paul Eggert.
---
 src/stty.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/stty.c b/src/stty.c
index 1a5c1e9620..df963462c1 100644
--- a/src/stty.c
+++ b/src/stty.c
@@ -1089,12 +1089,16 @@ apply_settings (bool checking, const char *device_name,
                 struct termios *mode, bool *speed_was_set,
                 bool *require_set_attr)
 {
-#define check_argument(arg) \
-  if (k == n_settings - 1 || ! settings[k+1]) \
-    { \
-      error (0, 0, _("missing argument to %s"), quote (arg)); \
-      usage (EXIT_FAILURE); \
-    }
+#define check_argument(arg)						\
+  do									\
+    {									\
+      if (k == n_settings - 1 || ! settings[k+1])			\
+        {								\
+          error (0, 0, _("missing argument to %s"), quote (arg));	\
+          usage (EXIT_FAILURE);						\
+        }								\
+    }									\
+  while (0)
 
   for (int k = 1; k < n_settings; k++)
     {
-- 
2.47.2