nobu	2008-06-22 07:16:45 +0900 (Sun, 22 Jun 2008)

  New Revision: 17530

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

  Log:
    * string.c (str_buf_cat): check for self concatenation.


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/ChangeLog?r1=17530&r2=17529&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8/string.c?r1=17530&r2=17529&diff_format=u