matz	2008-01-28 12:32:27 +0900 (Mon, 28 Jan 2008)

  New Revision: 15286

  Modified files:
    trunk/ChangeLog
    trunk/io.c

  Log:
    * io.c (rb_open_file): should check NUL in path.
      <http://www.rubyist.net/~matz/20080125.html#c01>.
    
    * io.c (rb_io_s_popen): ditto.
    
    * io.c (rb_io_reopen): ditto.
    
    * io.c (next_argv): ditto.

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=15286&r2=15285&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/io.c?r1=15286&r2=15285&diff_format=u