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=...").
Packaged by Jens Rehsack and provided via PR 39220.
This presents an ordinary array, but is kept sorted. All pushes and unshifts
cause the elements in question to be inserted in the appropriate location to
maintain order.