code: public static String formatProperties(Properties properties) {
  		StringBuffer buf = new StringBuffer();
  		Set<Object> keySet = properties.keySet();
  
  		for (Object key : keySet) {
  			buf.append(key.toString().trim().toUpperCase().replaceAll(" ", "_"));
  			buf.append("=");
  			buf.append(properties.get(key));
  			buf.append(System.getProperty("line.separator"));
  		}
  		return buf.toString();
  	}
docs: Format properties.
  
  @param properties the properties
  @return the string