Patch for 73017

73017.diff

commit fd42d3cab21295196e0b7c9df3ce85567c7bdad3
Author: Stanislav Malyshev <stas@php.net>
Date:   Mon Sep 5 18:10:51 2016 -0700

    Also fix overflow in wordwrap

diff --git a/ext/standard/string.c b/ext/standard/string.c
index da473d9..9acbe03 100644
--- a/ext/standard/string.c
+++ b/ext/standard/string.c
@@ -1011,7 +1011,7 @@ PHP_FUNCTION(wordwrap)
 		/* free unused memory */
 		newtext = erealloc(newtext, newtextlen+1);
 
-		RETURN_STRINGL(newtext, newtextlen, 0);
+		RETVAL_STRINGL_CHECK(newtext, newtextlen, 0);
 	}
 }
 /* }}} */