[perl5-dbi/dbi] 6c74b2: Fix string prove in Nano ("0" is not always false)

[Jens Rehsack]

  Branch: refs/heads/master
  Home:   https://github.com/perl5-dbi/dbi
  Commit: 6c74b24f661c288e2bcffceee1e5ef505e2a6e6e
      
https://github.com/perl5-dbi/dbi/commit/6c74b24f661c288e2bcffceee1e5ef505e2a6e6e
  Author: Jens Rehsack <s...@netbsd.org>
  Date:   2013-06-24 (Mon, 24 Jun 2013)

  Changed paths:
    M Changes
    M lib/DBI/SQL/Nano.pm

  Log Message:
  -----------
  Fix string prove in Nano ("0" is not always false)

Handle strings evaluating to a false value correct when simply expecting
data in DBI::SQL::Nano_::Statement part approval