updated command v2
updated command v2

- adjust the length of line 40 to not be more than 80 characters
- also fix line 36
- btw, I got error when I use version `2018.2.0 (20182.18.0627.2230) 64-bit Windows`, same with [](https://github.com/tableau/TabPy/issues/128)
tableau/TabPy,tableau/TabPy,tableau/TabPy