showDefaultValues = true prints null as default value

[jansohn]

I wasn't expecting member variables initialized with null (mostly Strings...) to be displayed with Default: null after activating showDefaultValues = true. Is there a possibility to only display not null default values?

[remkop]

Thanks for raising this!
The fix has been pushed to master. Please verify.

[jansohn]

Thanks for fixing this. I can confirm that it works. Is there any particular reason that the default values are being printed on a new line? I'm more familiar with the default values being displayed on the same line as the description (e.g. http://docopt.org/).

[remkop]

Putting the default value on a new line looks reasonably good even if the last description sentence does not end in a period. The docopt way also looks good though.

Could consider making this configurable but I need to think about how to do that without overcomplicating things.