class RSpec::Core::RakeTask

def spec_command
  @spec_command ||= begin
                      cmd_parts = []
                      cmd_parts << RUBY
                      cmd_parts << ruby_opts
                      cmd_parts << "-w" if @warning
                      cmd_parts << "-S" << runner
                      cmd_parts << "-Ispec:lib" << rcov_opts if rcov
                      cmd_parts << files_to_run
                      cmd_parts << "--" if rcov && rspec_opts
                      cmd_parts << rspec_opts
                      cmd_parts.flatten.reject(&blank).join(" ")
                    end
end