Log Message:
Security update for File::Path to 2.13.

2.13 2017-05-31
    - Document security vulnerability reported as CVE-2017-6512.

2.12_008 2017-05-07
    - Patch from John Lightsey.

2.12_007 2017-04-22
    - Skip tests where filesystem doesn't support permissions (RT 121248).
    - Add AppVeyor configuration; thanks to Charlie Gonzalez and Hayo Baan.

2.12_006 2017-04-21
    - Modernize README, Makefile.PL, updating of version number
      and release date in documentation.

2.12_005 2017-04-21
    - Recommend use of 'safe => 1' in remove_tree() and rmtree().
    - Warn if mkpath() or make_path() is passed implausible options on
      Windows.
    - Corrections to errors in previous release.

2.12_004 2017-04-18
    - Certain functions used in tests are not available on Windows;
      skip them.
    - Move certain functions used in testing to t/FilePathTest.pm.

2.12_003 2017-04-07
    - Add tests to improve coverage ratios as measured by Devel::Cover
    - No functional changes.

2.12_002 2017-03-12
    - GH#41 RT 117019 Fixed File::Path::remove_tree option hash is auto
                      populated and cannot be reused
    - GH#40 Unskip in path root t
    - GH#39 Remove superfluous assignment to $arg{perm}
    - GH#38 Minor grammatical doc fixes.
    - GH#37 Minor grammatical doc fixes.

2.12_001 2016-09-18
    - RT 94209  document that the thread safety issue will not change and
      communicate alternative.
    - RT 85878  be more generous with error check regex given we could be
      dealing with a pre-1.25 Carp.
    - GH #33    Be more precise in documentation example for make_path
      error checking.
    - GH #34 Skip Windows 2000 and earlier unit tests (test change).
    - GH #36 Do not hardcode ENOENT (test change).