document when -prompt, -default options became available
this dir ought to be deleted at the end of tests most of the time
make brace matching work in vim
more diagnostics on failure
test for more \n
there is no need to use [DynamicPrereqs]' -delimiter option from code
TODO note for the future, for more simplification with [DynamicPrereqs]
set up all [DynamicPrereqs] plugins at once, in reverse order, to manage the prompt order
combine all the prompt strings on our end and use just one instance of [DynamicPrereqs], so we don't have to to be concerned with how it munges Makefile.PL
reverse the conditional if there is only one prereq being prompted for
Dist-Zilla-Plugin-OptionalFeature-0.020

          - when setting up prompting in Makefile.PL for multiple optional
            features, control all prompts from one master plugin to ensure the
            prompt order remains as desired