Avoid stack trace when canceling the Capistrano menu

cap_deploy_clean_menu_exit.rb

# Put this code in your deploy.rb, if you are annoyed by
# the stack trace when aborting the capistrano with ^C
# (under MIT License)

require 'active_support/core_ext/module'

# avoid having a whole page of stack trace when you abort the menu with `^C`
HighLine.module_eval do
  def get_line_with_interrupt_catching
    get_line_without_interrupt_catching
  rescue Interrupt
    puts
    exit
  end
  alias_method_chain :get_line, :interrupt_catching
end