code formatting

src/AssignmentSnakeRules.rsc

@@ -53,7 +53,7 @@ set[Message] aSnake_controller_separated(M3 model)
 	      , javafxSceneInputMouseEvent
 	      };
     	set[loc] permittedClasses =
-    	  {findClass(model, "Main")
+    	  { findClass(model, "Main")
 	      , findClass(model, "InputHandler")
 	      };
 	    return { error("<getName(model, eventClass)>: only InputHandler should handle input events", class)