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=...").
HTTP::Body parses chunks of HTTP POST data and supports
application/octet-stream, application/x-www-form-urlencoded, and
multipart/form-data.
Chunked bodies are supported by not passing a length value to new().
It is currently used by Catalyst to parse POST bodies.