parse_line_number_from_description

# File lib/bundler/dsl.rb, line 600
      def parse_line_number_from_description
        description = self.description
        if dsl_path && description =~ /((#{Regexp.quote File.expand_path(dsl_path)}|#{Regexp.quote dsl_path.to_s}):\d+)/
          trace_line = Regexp.last_match[1]
          description = description.sub(/#{Regexp.quote trace_line}:\s*/, "").sub("\n", " - ")
        end
        [trace_line, description]
      end