knu	2008-05-25 19:54:10 +0900 (Sun, 25 May 2008)

  New Revision: 16589

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/hash.c

  Log:
    * hash.c (env_delete_if): Return an enumerator if no block is
      given.
      (env_each_key): Delay a variable initialization after
      RETURN_ENUMERATOR().


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=16589&r2=16588&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/hash.c?r1=16589&r2=16588&diff_format=u