Revert "ghe-rsync: -r is not required when using -a"

Actually required when using `--files-from`

This reverts commit b110c66.

Author: rubiojr

share/github-backup-utils/ghe-restore-repositories-gist-ng

@@ -82,7 +82,7 @@ done
 
 # rsync all the gist repositories
 for route in $tempdir/*.rsync; do
-  ghe-rsync -aHR --delete \
+  ghe-rsync -arHR --delete \
     -e "ssh -q $opts -p $port -F $ssh_config_file -l $user" \
     --rsync-path="sudo -u git rsync" \
     --files-from=$route \