merge revision(s) r45034,r45037:

	* test/socket/test_addrinfo.rb: remove unused variables.

	* test/socket/test_nonblock.rb: ditto.

	* test/socket/test_socket.rb: ditto.

	* test/socket/test_unix.rb: ditto.

	* test/testunit/test_parallel.rb: ditto.

	* test/webrick/test_filehandler.rb: ditto.

	* test/xmlrpc/test_features.rb: ditto.

	* test/zlib/test_zlib.rb: ditto.

	* test/socket/test_socket.rb: unix socket is required by test case.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46912 b2dd03c8-39d4-4d8f-98ff-823fe69b080e