merge revision(s) 44731,44751: [Backport #8978]

	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
	  [ruby-core:57599] [Bug #8978].  Thanks mame!

	* ext/fiddle/closure.c: use sizeof(*pcl) for correct sizeof value.
	  [ruby-core:57599] [Bug #8978].


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e