public static String formatThrowable(Throwable throwable) {
        checkInitialization();
        return XLog.sLogConfiguration.throwableFormatter.format(throwable);
    }
Format a throwable using default throwable formatter.

@param throwable the throwable to format
@return the formatted string
android/android_framework/base/src/main/java/com/elvishew/xlog/LogUtils.java