210 String8 String8::format(const char* fmt, ...)  in format()  argument
213     va_start(args, fmt);  in format()
215     String8 result(formatV(fmt, args));  in format()
221 String8 String8::formatV(const char* fmt, va_list args)  in formatV()  argument
224     result.appendFormatV(fmt, args);  in formatV()
313 status_t String8::appendFormat(const char* fmt, ...)  in appendFormat()  argument
316     va_start(args, fmt);  in appendFormat()
318     status_t result = appendFormatV(fmt, args);  in appendFormat()
324 status_t String8::appendFormatV(const char* fmt, va_list args)  in appendFormatV()  argument
334     n = vsnprintf(NULL, 0, fmt, tmp_args);  in appendFormatV()
341             vsnprintf(buf + oldLength, n + 1, fmt, args);  in appendFormatV()