to trigger/signal a rebuild for the transition 5.8.8 -> 5.10.0.
The list of packages is computed by finding all packages which end
up having either of PERL5_USE_PACKLIST, BUILDLINK_API_DEPENDS.perl,
or PERL5_PACKLIST defined in their make setup (tested via
"make show-vars VARNAMES=...").
Email::Valid::Loose is a subclass of Email::Valid, which allows .
(dot) before @ (at-mark). It is invalid in RFC822, but is commonly
used in some of mobile phone addresses in Japan (like docomo.ne.jp
or jp-t.ne.jp).