knu	2008-04-23 11:53:10 +0900 (Wed, 23 Apr 2008)

  New Revision: 16168

  Modified files:
    branches/ruby_1_8/ChangeLog
    branches/ruby_1_8/lib/set.rb

  Log:
    * lib/set.rb (Set#each, SortedSet#each, TC_Set#test_each): Return
      an enumerator if no block is given.


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=16168&r2=16167&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/lib/set.rb?r1=16168&r2=16167&diff_format=u