confirm the current behaviour when we prompt about 2+ modules at once
when killing the build, include a cpanm line
remove redundant and unneeded bits
when checking for lots of modules at once, pull down 02packages
reuse the existing 02packages file for all queries once we have it
fix the real-life code path - and split tests into two
Error retrieving 'https://rt.cpan.org/Public/Dist/Display.html?Name=Dist-Zilla-Plugin-PromptIfStale': 500 Can't connect to rt.cpan.org:443 (certificate verify failed)
Dist-Zilla-Plugin-PromptIfStale-0.007

          - when killing a build after being prompted, include a line that can
            be copy-pasted to install all the missing modules via cpanm
          - speed up index querying when checking for 6 or more modules at
            once by pulling down a copy of 02packages.details.txt.gz