docs: public String getLineSeparator() {
  		if (Strings.isNullOrEmpty(this.lineSeparator)) {
  			final String nl = System.getProperty("line.separator"); //$NON-NLS-1$
  			if (Strings.isNullOrEmpty(nl)) {
  				return "\n"; //$NON-NLS-1$
  			}
  			return nl;
  		}
  		return this.lineSeparator;
  	}