Automatically set the Gemspec date.
Automatically set the Gemspec date.

Considering how bad I am at remembering these little details this should
hopefully make my own life a bit easier.

Signed-off-by: Yorick Peterse <82349cb6397bb932b4bf3561b4ea2fad50571f50@gmail.com>

YorickPeterse/ruby-lint,YorickPeterse/ruby-lint,cabo/ruby-lint,cabo/ruby-lint