# File lib/rake.rb, line 827
827:   def verbose(value=nil)
828:     oldvalue = RakeFileUtils.verbose_flag
829:     RakeFileUtils.verbose_flag = value unless value.nil?
830:     if block_given?
831:       begin
832:         yield
833:       ensure
834:         RakeFileUtils.verbose_flag = oldvalue
835:       end
836:     end
837:     RakeFileUtils.verbose_flag
838:   end