Also export LC_ALL to C to work properly (#2926)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10059 3c298f89-4303-0410-b956-a3cf2f4a3e73

scripts/getver.sh

 #!/usr/bin/env bash
 export LANG=C
+export LC_ALL=C
 [ -n "$TOPDIR" ] && cd $TOPDIR
 
 try_version() {