From 7fdbdd0770ff67762cc49d18389867f87bac5666 Mon Sep 17 00:00:00 2001
From: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Sat, 5 Jul 2014 14:35:34 +0000
Subject: [PATCH] ls: add -1 for compatibility (ignore)

---
 ls.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ls.c b/ls.c
index 88ae3c0..a4621d6 100644
--- a/ls.c
+++ b/ls.c
@@ -43,7 +43,7 @@ static bool many;
 static void
 usage(void)
 {
-	eprintf("usage: %s [-adFilrtU] [FILE...]\n", argv0);
+	eprintf("usage: %s [-1adFilrtU] [FILE...]\n", argv0);
 }
 
 int
@@ -53,6 +53,9 @@ main(int argc, char *argv[])
 	Entry *ents;
 
 	ARGBEGIN {
+	case '1':
+		/* ignore */
+		break;
 	case 'a':
 		aflag = true;
 		break;