From 6a26499beca5a61354b6cc12e4abf6b7454ff878 Mon Sep 17 00:00:00 2001
From: Ralph Corderoy <ralph@inputplus.co.uk>
Date: Sat, 22 Apr 2017 01:00:29 +0100
Subject: [PATCH] sbr/discard.c: Simplify by inverting initial test.

The function used to return early, but these days that's just avoiding a
single statement, so execute that conditionally instead.
---
 sbr/discard.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sbr/discard.c b/sbr/discard.c
index 83b0bfbc..7f65affc 100644
--- a/sbr/discard.c
+++ b/sbr/discard.c
@@ -1,4 +1,3 @@
-
 /*
  * discard.c -- discard output on a file pointer
  *
@@ -11,16 +10,9 @@
 
 #include <termios.h>
 
-
 void
 discard (FILE *io)
 {
-    if (io == NULL)
-	return;
-
-    tcflush (fileno(io), TCOFLUSH);
-
-    /* There used to be an fpurge() here on some platforms, stdio
-       hackery on others.  But it didn't seem necessary. */
+    if (io)
+        tcflush (fileno(io), TCOFLUSH);
 }
-
-- 
2.56.0