Ruby » Ruby master

Added initial gemspec for Fcntl module.

[Feature #13206]

• ext/fcntl/fcntl.gemspec: initial commit.
• doc/maintainers.rdoc, doc/standard_library.rdoc: Move Fcntl module
  to Default gems section.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57596 b2dd03c8-39d4-4d8f-98ff-823fe69b080e