rubygems/rubygems — pull request #681 by jeremyevans (2013-10-10 17:50:46+00:00)
Title: Install files starting with '.' (Fixes #680)

The '*' pattern doesn't match files starting with '.' unless you
use File::FNM_DOTMATCH. Some gems depend on files starting with
'.' being installed. Excluding files starting with '.' was not
the intention of the author that added the fnmatch code.