docs: public static String concat(String baseName, String... appendName) {
  		if (appendName.length == 0) {
  			return baseName;
  		}
  
  		StringBuilder concatName = new StringBuilder();
  		if (MoreStringUtil.endWith(baseName, Platforms.FILE_PATH_SEPARATOR_CHAR)) {
  			concatName.append(baseName).append(appendName[0]);
  		} else {
  			concatName.append(baseName).append(Platforms.FILE_PATH_SEPARATOR_CHAR).append(appendName[0]);
  		}
  
  		if (appendName.length > 1) {
  			for (int i = 1; i < appendName.length; i++) {
  				concatName.append(Platforms.FILE_PATH_SEPARATOR_CHAR).append(appendName[i]);
  			}
  		}
  
  		return concatName.toString();
  	}