From: Razvan Crainea <razvan@opensips.org>
Date: Tue, 12 Sep 2017 11:36:40 +0300
Subject: [PATCH] parse_fline: fix implicit cast sign

(cherry picked from commit b0eb928e7241e9c8c2fcfff3e3bb3704fbfddae6)

diff --git a/parser/parse_fline.c b/parser/parse_fline.c
index a7a202242..20548141b 100644
--- a/parser/parse_fline.c
+++ b/parser/parse_fline.c
@@ -1275,7 +1275,7 @@ error:
 	if (prn) {
 		for (t=0; t<offset; t++)
 			if (*(buffer+t)) *(prn+t)=*(buffer+t);
-			else *(prn+t)=248;
+			else *(prn+t)=248U;
 		LM_ERR("parsed so far: %.*s\n", offset, ZSW(prn) );
 		pkg_free( prn );
 	};