updated msg

services/src/main/java/ch/hepia/event/EventAddProductQuantity.java

@@ -19,6 +19,6 @@ public class EventAddProductQuantity extends Event{
 
     @Override
     public String toString(){
-        return "\n"+super.toString()+" : "+this.msg+" ( product id =" + this.idProduct+", quantity ordered = "+this.quantity+" )\n";
+        return "\n"+super.toString()+" : "+this.msg+" ( product id = " + this.idProduct+", quantity ordered = "+this.quantity+" )\n";
     }
 }
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