Tweak systemd action pending message : echo -n is pointless

data/helpers.d/systemd

@@ -145,11 +145,8 @@ ynh_systemd_action() {
                 ynh_print_info --message="The service $service_name has correctly executed the action ${action}."
                 break
             fi
-            if [ $i -eq 3 ]; then
-                echo -n "Please wait, the service $service_name is ${action}ing" >&2
-            fi
-            if [ $i -ge 3 ]; then
-                echo -n "." >&2
+            if [ $i -eq 30 ]; then
+                echo "(this may take some time)" >&2
             fi
             sleep 1
         done