dir.c: fix up r59527
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
dir.c: fix up r59527
directory should not be included unless FNM_DOTMATCH is given.
[ruby-core:82266] [Bug #13785]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e