Log Message:
Update to 2.172

Upstream changes:
2.172

    Prepare recent changes for CPAN release
2.171 (Apr 21 2018)

    Restore deparsing support in the XS dumper, on Perl 5.18 and earlier

    Test fixes on older Perl versions (notably, skip tests for Unicode glob \ 
names on Perl 5.14 and earlier, which had incomplete support for Unicode in \ 
globs)
2.170 (Jan 10 2018)

    Fix bug when dumping globs with quoting (which now happens for all Unicode \ 
glob names)

    Internal change: use strlcpy(), for safety
2.169 (Dec 12 2017)

    Behavior change: $dumper->Useqq(undef) is now treated as setting the \ 
"useqq" option, not getting it (and similarly for other options) [perl \ 
#113090]
2.168 (Dec 1, 2017)

    perl #119831: Quote glob names better; notably, Unicode globs are now \ 
handled correctly
2.167_02 (Aug 4 2017)

    Attempt to work around XS deparse issues on old perls. According to the few \ 
old perls at my disposure, this now repairs, for example 5.18, but 5.8.9 still \ 
barfs. My debugging hasn't really come up with much since all changes other than \ 
the deparse change look benign to me. Can someone who uses ancient perls please \ 
step up and take a look? --Steffen
2.167_01 (Jul 31 2017)

    CPAN dev release with the accumulated changes from core perl.
2.166 (Nov 29 2016)

    Reduce memory usage by not importing from Carp Reduce memory usage by \ 
removing unused overload require.
2.165 (Nov 20 2016)

    Remove impediment to compiling under C++11.
2.164 (Nov 12 2016)

    The XS implementation now handles the Deparse option, so using it no longer \ 
forces use of the pure-Perl version.