merge revision(s) 44370: [Backport #9576]

	hash.c: extra states

	* hash.c (rb_hash_reject): use words "extra states".

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45227 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Conflicts:
	hash.c
	version.h

Conflicts:
	hash.c