From 0eff530775f94be45fba133eb58db0693751df2e Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Mon, 28 May 2018 18:29:15 +0000
Subject: [PATCH] strsep.3: don't silently ignore errors

Reported by:	bde
MFC with:	r334275
---
 lib/libc/string/strsep.3 | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/libc/string/strsep.3 b/lib/libc/string/strsep.3
index e888ecfaa850..0dbf1294db27 100644
--- a/lib/libc/string/strsep.3
+++ b/lib/libc/string/strsep.3
@@ -86,9 +86,10 @@ to parse a string, and prints each token in separate line:
 char *token, *string, *tofree;
 
 tofree = string = strdup("abc,def,ghi");
-if (string != NULL)
-	while ((token = strsep(&string, ",")) != NULL)
-		printf("%s\en", token);
+if (string == NULL)
+	err(1, "strdup");
+while ((token = strsep(&string, ",")) != NULL)
+	printf("%s\en", token);
 
 free(tofree);
 .Ed