From 5ad71a466bc14392e634583fc6ed9d37a2693952 Mon Sep 17 00:00:00 2001
From: FRIGN <dev@frign.de>
Date: Mon, 7 Mar 2016 11:18:30 +0100
Subject: [PATCH] Error out when giving an empty delimiter to sort(1)

---
 sort.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sort.c b/sort.c
index 3a0c827..5cfe801 100644
--- a/sort.c
+++ b/sort.c
@@ -364,6 +364,8 @@ main(int argc, char *argv[])
 		break;
 	case 't':
 		fieldsep = EARGF(usage());
+		if (!*fieldsep)
+			eprintf("empty delimiter\n");
 		fieldseplen = unescape(fieldsep);
 		break;
 	case 'u':