verbose (RakeFileUtils)

         # 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