Update podlators to CPAN version 2.5.1

  [DELTA]

  2013-02-27  Russ Allbery  <rra@stanford.edu>

    * VERSION: podlators 2.5.1 released.

    * t/color.t: Add Z<> to tag width test to avoid triggering the new
    Pod::Parser warning about numeric items in description lists.
    * t/overstrike.t: Likewise.
    * t/termcap.t: Likewise.
    * t/man.t: Remove the test for proper handling of lists that start
    with a non-bullet and then have an item that looks like a bullet.
    This now triggers a warning in Pod::Simple.  Move it to...
    * t/man-options.t: ...here, where we can configure the parser to
    ignore errors and test that the output is correct.