`binding.pry` errors out on master

     Failure/Error:
       def prompt(message, choices = nil)
         begin
           print(message)
           answer = STDIN.gets.chomp
         end while choices.present? && !choices.include?(answer)
         answer

     ArgumentError:
       wrong number of arguments (given 0, expected 1..2)
     # ./lib/tasks/gitlab/task_helpers.rb:45:in `prompt'

To reproduce: Add binding.pry to any spec and run it with rspec.

Likely introduced in https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/13249