base-files: initialize GZIPED to 0 in sysupgrade since it's used later in numeric comparisons

SVN-Revision: 15890

package/base-files/files/sbin/sysupgrade

@@ -9,7 +9,7 @@ export VERBOSE=1
 export SAVE_CONFIG=1
 export DELAY=
 export CONF_IMAGE=
-export GZIPED=
+export GZIPED=0
 # parse options
 while [ -n "$1" ]; do 
 	case "$1" in
@@ -114,4 +114,4 @@ if [ -n "$(rootfs_type)" ]; then
 	run_ramfs '. /etc/functions.sh; include /lib/upgrade; do_upgrade'
 else
 	do_upgrade
-fi
+fi