knu	2008-04-14 17:31:38 +0900 (Mon, 14 Apr 2008)

  New Revision: 16006

  Modified files:
    trunk/ChangeLog
    trunk/hash.c

  Log:
    * hash.c (rb_hash_delete_if, rb_hash_reject_bang, env_delete_if,
      env_reject_bang): Return an enumerator if no block is given.


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/hash.c?r1=16006&r2=16005&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=16006&r2=16005&diff_format=u