matz	2007-12-24 03:01:16 +0900 (Mon, 24 Dec 2007)

  New Revision: 14543

  Modified files:
    trunk/ChangeLog
    trunk/io.c

  Log:
    * io.c (rb_io_check_readable): should not fill fptr->enc always.
      read-write IO (e.g. socket) does not work.  [ruby-dev:32685]
    
    * io.c (io_read_encoding): retrieve reading encoding.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=14543&r2=14542
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/io.c?r1=14543&r2=14542