[gnome-sdk-images] build.sh: Fix shell warning

[Alexander Larsson <alexl src gnome org>]

commit 4c556ab53304993458bc3d2d82bee28989d8d40d
Author: Alexander Larsson <alexl redhat com>
Date:   Tue Mar 24 15:11:25 2015 +0100

    build.sh: Fix shell warning

 build.sh |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/build.sh b/build.sh
index a6f9a04..98b21b9 100755
--- a/build.sh
+++ b/build.sh
@@ -32,7 +32,7 @@ fi
 echo "builduser:x:`id  -u`:`id -u`:Build user:/self/packages:/sbin/nologin" >> $ROOT/usr/etc/passwd
 echo "builduser:x:`id  -g`:" >> $ROOT/usr/etc/group
 
-rc = 1;
+rc=1
 if test "x${XDG_APP_HELPER}" != "x"; then
     $XDG_APP_HELPER -w -W -E -a $SRC -v $VAR $ROOT/usr env PATH="$PATH" /self/cd.sh "$@"
     rc=$?;
@@ -41,7 +41,6 @@ elif test "x${LINUX_USER_CHROOT}" != "x"; then
     rc=$?;
 else
     echo "No containment helper found"
-    exit 1
 fi
 
 cp -a $BUILD/passwd.orig $ROOT/usr/etc/passwd