merge revision(s) 41411:

	test_signal.rb: extra quotes

	* test/ruby/test_signal.rb (TestSignal#test_signal_process_group):
  remove extra quotes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e