- ruby-1.8.x-null-class-must-be-Qnil.patch (bug 530407)
    - Recreate some patches using upstream svn when available, and add some
        comments for patches
    Tue May 11 2010 Mamoru Tasaka <mtasaka@ioa.s.u-tokyo.ac.jp> - 1.8.6.399-2
    - tcltk: Give up using potentially unmaintained ruby_1_8_6 branch and
        instead completely replace with ruby_1_8 branch head (at this time,
        using rev 27738) (seems to fix 560053, 590503)
    - Fix Japanese encoding strings under ruby-tcltk/ext/tk/sample/