p5-Perl-Tidy: update to 20180101.

  2018 01 01
      - Added new flag -wn (--weld-nested-containers) which addresses these issues:
        RT #123749: Problem with promises;
        RT #119970: opening token stacking strange behavior;
        RT #81853: Can't stack block braces

      - Fixed RT #114359: Missparsing of "print $x ** 0.5;

      - Deactivated the --check-syntax flag for better security.  It will be
        ignored if set.

      - Corrected minimum perl version from 5.004 to 5.008 based on perlver
        report.  The change is required for coding involving wide characters.

      - For certain severe errors, the source file will be copied directly to the
        output without formatting. These include ending in a quote, ending in a
        here doc, and encountering an unidentified character.

(wiz)