Update p5-Getopt-Long-Descriptive from version 0.077 to version 0.083.

Pkgsrc changes:
- Adjust dependencies.

Upstream changes:
0.083  2009-12-12
        create an Opts module to store the opts object code
        add _specified_opts method and _specified method for Opts

0.082  2009-12-03
        require Getopt::Long 2.33 for proper --no-foo handling

0.081  2009-11-27
        \%opt will not contain entries for opts that were not given
        (this reverts 0.079 and 0.080's new behavior of undef entries)

0.080  2009-11-27
        fix option naming to ignore "+" used to mark cumulative options
        fix direct calls to Getopt::Long::Descriptive::describe_options

0.079  2009-11-26 Happy Thanksgiving!
        improve the "opt as object" facility to have all opts as methods

0.078  2009-08-21
        refactoring to allow subclassing of Getopt::Long::Descriptive

(seb)