Minor style tidy up

Author: snh

bin/ghe-restore

@@ -173,7 +173,7 @@ if $instance_configured; then
 fi
 
 # Make sure the appliance doesn't already have a restore underway
-if [ "$GHE_VERSION_MAJOR" -ge 2 ] && ghe-ssh "$GHE_HOSTNAME" -- "sudo grep -q 'restoring' '$GHE_REMOTE_DATA_USER_DIR/common/ghe-restore-status' 2>/dev/null"; then
+if [ "$GHE_VERSION_MAJOR" -ge 2 ] && ghe-ssh "$GHE_HOSTNAME" -- "sudo grep -q restoring $GHE_REMOTE_DATA_USER_DIR/common/ghe-restore-status 2>/dev/null"; then
     echo "Error: $GHE_HOSTNAME already has a restore underway. Aborting." 1>&2
     exit 1
 fi