public static void log(int logLevel, String format, Object... args) {
    assertInitialization();
    sLogger.log(logLevel, format, args);
  }
Log a message with specific log level.

@param logLevel the specific log level
@param format   the format of the message to log
@param args     the arguments of the message to log
@since 1.4.0
xlog/src/main/java/com/elvishew/xlog/XLog.java