global

def sinatra_warn(*message) #:nodoc:

:nodoc:
Like Kernel#warn but outputs the location that triggered the warning. 
def sinatra_warn(*message) #:nodoc:
  line = caller.
    detect { |line| line !~ /(?:lib\/sinatra\/|__DELEGATE__)/ }.
    sub(/:in .*/, '')
  warn "#{line}: warning: #{message.join(' ')}"
end