merge revision(s) 44000: [Backport #9205]

	test_gc.rb: shorten

	* test/ruby/test_gc.rb (test_sweep_in_finalizer): omit iteration number to 2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@44322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e