From 93ff33b4b44f297924ecb9f2f1de84646db0cd1b Mon Sep 17 00:00:00 2001
From: Ali Gholami Rudi <ali@rudi.ir>
Date: Sat, 27 Jul 2013 18:31:20 +0430
Subject: [PATCH] tr: ignore .lf with no arguments

---
 tr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tr.c b/tr.c
index 7e89229..374fb16 100644
--- a/tr.c
+++ b/tr.c
@@ -504,7 +504,8 @@ static void tr_mc(char **args)
 
 static void tr_lf(char **args)
 {
-	in_lf(args[2], eval(args[1], 0));
+	if (args[1])
+		in_lf(args[2], eval(args[1], 0));
 }
 
 static char *arg_regname(char *s, int len)
-- 
2.11.4.GIT