rubyspec/rubyspec — pull request #242 by iainbeeston (2013-08-03 12:38:52+00:00)
Title: Added tests for Dir.glob being passed a string of the form '{<pattern>,<pattern>,...}'

I've only recently seen this style of string argument for glob, but it works in MRI and is used in at least one project I know of (the preloading library [spring](https://github.com/jonleighton/spring/blob/master/lib/spring/watcher/polling.rb#L55))