matz	2007-10-16 01:28:18 +0900 (Tue, 16 Oct 2007)

  New Revision: 13712

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

  Log:
    * encoding.c (Init_Encoding): define #to_s to show encoding name
      in to_s representation as well as #inspect.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/version.h?r1=13712&r2=13711
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=13712&r2=13711
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/encoding.c?r1=13712&r2=13711