!207 修改fuzz用例

Merge pull request !207 from mashaoyin/master

test/fuzztest/timeservice_fuzzer/timeservice_fuzzer.cpp

@@ -63,7 +63,7 @@ bool FuzzTimeService(const uint8_t* rawData, size_t size)
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
 {
     if (size < OHOS::THRESHOLD) {
-        return -1;
+        return 0;
     }
     /* Run your code on data */
     OHOS::FuzzTimeService(data, size);