# File lib/capistrano/recipes/deploy/scm/cvs.rb, line 56
        def log(from, to=nil)
          rev_type = revision_type(from)
          if rev_type == :date
            range_arg = "-d '#{from}<#{to || 'now'}'"
          else
            range_arg = "-r '#{from}:#{to || head}'"
          end
          scm cvs_root, :log, range_arg
        end