Bug#950716: transition: ruby2.7

[Graham Inggs <ginggs@debian.org>]

All binNMUs have been scheduled.
There were some packages that seem to have been rebuilt unnecessarily, 
but no harm done.

I noticed Ubuntu's ben file is quite different.
Should we update the Debian one to match?


https://people.canonical.com/~ubuntu-archive/transitions/html/ruby2.7-add.html


title = "add ruby2.7 support";
is_affected = (.depends ~ /ruby2.5/ | .depends ~ /ruby2.7/) & ! .source 
~ 
/^(ruby2\.5|ruby-defaults|obexftp|weechat|graphviz|broccoli-ruby|dislocker|geos|kross-interpreters|libprelude|marisa|ngraph-gtk|notmuch|redland-bindings|rubyluabridge|subtle|subversion|treil|uwsgi|vim|vim-command-t|nbdkit|ruby-standalone)$/;
is_good = .depends ~ /libruby2.7/;
is_bad = .depends ~ /libruby2.5/ & ! .depends ~ /libruby2.7/;