#### Before this patch:

  ```console
  Fail: mruby-bin-debugger(print) error (mrbgems: mruby-bin-debugger)
   - Assertion[2]
      Expected true to be false.
  ```

#### After this patch:

  ```console
  Fail: mruby-bin-debugger(print) error (mrbgems: mruby-bin-debugger)
   - Assertion[2]
      Expected "$2 = undefined method 'bar' (NoMethodError)\n" to be start_with? "$2 = (eval):2: undefined method".
  ```