Merge pull request #1538 from tsujamin/update.sh-ininite-loop-fix

Fix infinite loop when parsing update.sh arguments

update.sh

@@ -28,6 +28,7 @@ while (($#)); do
       MERGE_STRATEGY=ours
     ;;
   esac
+  shift
 done
 
 [[ ! -f mailcow.conf ]] && { echo "mailcow.conf is missing"; exit 1;}