RiotGames/buff-shell_out — pull request #1 by reset (2013-06-12 20:42:20+00:00)
Title: handle older versions of win32-process

https://github.com/djberg96/win32-process/blob/master/lib/win32/process.rb#L494-L519

This was fixed in a more recent version of win32-process but the 0.6.x series is pretty wide spread.