Start using MODRUBY_REGRESS with ruby, rspec2, and testrb entries.
Switch away from manual do_regress targets where possible. Add
some patches to make regress tests run for some ports.
MSpec is a specialized framework that is syntax-compatible with RSpec
for basic things like describe, it blocks and before, after actions.
MSpec contains additional features that assist in writing the RubySpecs
used by multiple Ruby implementations. Also, MSpec attempts to use the
simplest Ruby language features so that beginning Ruby implementations
can run it.