code: void addTags(StringBuilder resultString, Server server) {
  		if (hostnameTag) {
  			addTag(resultString, "host", server.getLabel());
  		}
  
  		// Add the constant tag names and values.
  		for (Map.Entry<String, String> tagEntry : tags.entrySet()) {
  			addTag(resultString, tagEntry.getKey(), tagEntry.getValue());
  		}
  	}
docs: Add tags to the given result string, including a "host" tag with the name of the server and all of the tags
  defined in the "settings" entry in the configuration file within the "tag" element.
  
  @param resultString - the string containing the metric name, timestamp, value, and possibly other content.