matz	2007-09-25 21:45:03 +0900 (Tue, 25 Sep 2007)

  New Revision: 13512

  Modified files:
    trunk/ChangeLog
    trunk/bootstraptest/test_knownbug.rb
    trunk/io.c

  Log:
    * io.c (io_ungetc): reallocate internal buffer if pushing data
      excess capacity.  [ruby-dev:31650]

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/ChangeLog?r1=13512&r2=13511
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/io.c?r1=13512&r2=13511
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/trunk/bootstraptest/test_knownbug.rb?r1=13512&r2=13511