refactoring: Pulled the actual using of the item into its own function

src/main/java/org/bitbiome/commands/UseCommand.java

@@ -10,9 +10,11 @@ public class UseCommand implements CommandAPI {
 
     private String getUseMessage(String msg) {
         String message[] = msg.split(" on ");
-        String returnString = "You used " + msg;
-        if(message.length == 1)
-            returnString+=" on yourself";
+        String returnString = useItem(message[0], message[1]);
         return returnString;
     }
+
+    private String useItem(String item, String target) {
+        return "You used " + item + " on " + target;
+    }
 }