Fix formatting

Author: SuperDuperDeou

src/configModel/configModel.vala

@@ -247,7 +247,9 @@ namespace SwayNotificationCenter {
             spawn_env += "SWAYNC_REPLACES_ID=%s".printf (param.replaces_id.to_string ());
             spawn_env += "SWAYNC_TIME=%s".printf (param.time.to_string ());
             spawn_env += "SWAYNC_DESKTOP_ENTRY=%s".printf (param.desktop_entry ?? "");
-	    foreach (string hint in param.hints.get_keys()) spawn_env += "SWAYNC_HINT_%s=%s".printf(hint.up ().replace ("-", "_"), param.hints[hint].print (false));
+            foreach (string hint in param.hints.get_keys ()) {
+                spawn_env += "SWAYNC_HINT_%s=%s".printf (hint.up ().replace ("-", "_"), param.hints[hint].print (false))
+            };
 
             return yield Functions.execute_command (exec, spawn_env, out msg);
         }