Dir.glob doesn't recurse hidden directories
I noticed Dir.glob('**') doesn't recurse hidden directories.
I believe regression has been introduced by r36903.
Here is the following directory / file structure:
$ find .
And here is the behavior of ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-darwin11.4.2]:
$ ruby -e "puts Dir.glob('**/*')"