matz	2007-05-01 17:45:28 +0900 (Tue, 01 May 2007)

  New Revision: 12233

  Modified files:
    trunk/ChangeLog
    trunk/array.c
    trunk/version.h

  Log:
    * array.c (rb_ary_choice): a new method to choose an element
      randomly from an array.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/version.h?r1=12233&r2=12232
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/array.c?r1=12233&r2=12232
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=12233&r2=12232