From: Kevin Locke <kevin@kevinlocke.name>
Subject: zipgrep: Avoid test errors when no members present
Bug-Debian: https://bugs.debian.org/972233
X-Debian-version: 6.0-26

--- a/unix/zipgrep
+++ b/unix/zipgrep
@@ -44,6 +44,7 @@
   opt="-$opt"
 fi
 
+sts=0
 status_grep_global=1
 IFS='
 '