Added specs for interrupt catching
Created by: myrridin
Added a handful of specs to cover catching of SIGINT.
This is a remake of https://github.com/rspec/rspec-core/pull/2096
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Created by: myrridin
Added a handful of specs to cover catching of SIGINT.
This is a remake of https://github.com/rspec/rspec-core/pull/2096