davincicoders/ruby_koans_mkreyman — pull request #13 by mkreyman (2014-03-05 04:03:56+00:00)
Title: Fixed about_true_and_false.rb to pass all tests

Learned about/that:
* true is treated as true,
* and false is treated as false,
* nil is also treated as false,
* everything else is treated as true.

[#65851766]