hash.c: extra states

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


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44370 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove trailing spaces.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44371 b2dd03c8-39d4-4d8f-98ff-823fe69b080e