code: public Swagger2MarkupConfigBuilder withLineSeparator(LineSeparator lineSeparator) {
          Validate.notNull(lineSeparator, "%s must no be null", "lineSeparator");
          config.lineSeparator = lineSeparator;
          return this;
      }
docs: Specifies the line separator which should be used.
  
  @param lineSeparator the lineSeparator
  @return this builder