Updating databases/p5-DBD-CSV from 0.30 to 0.31

Updating databases/p5-DBD-CSV from 0.30 to 0.31

pkgsrc changes:
- adjust dependencies

Upstream changes:
2010-09-18  0.31  H.Merijn Brand
    * Require 5.8.1 (effectively already doing so by requiring DBI-1.614)
    * Update tests to use warnings and done_testing ()
      requires Test::More-0.90, which is also required for DBI
    * Better diagnostics for empty files
    * Allow late setting of attributes (RT#61168) - requires DBI-1.614