Log message:
Bump all packages for perl-5.18, that
a) refer 'perl' in their Makefile, or
b) have a directory name of p5-*, or
c) have any dependency on any p5-* package

Like last time, where this caused no complaints.

Log message:
Drop superfluous PKG_DESTDIR_SUPPORT, "user-destdir" is default these days.

Log message:
Bump all packages that use perl, or depend on a p5-* package, or
are called p5-*.

I hope that's all of them.

Log message:
Importing Perl 5 module String::Errf version 0.006 from CPAN into
textproc/p5-String-Errf.

String::Errf provides errf, a simple string formatter that works something
like sprintf. It is implemented using String::Formatter and Sub::Exporter.