[libFuzzer] Un-reverting change in tests after fixing the failure on Linux.

Differential Revision: https://reviews.llvm.org/D36242

git-svn-id: svn://svn.chromium.org/llvm-project/llvm/trunk/lib/Fuzzer@309982 0b72dbe1-c17f-4bc7-b9db-2b4152be0356
diff --git a/test/InitializeTest.cpp b/test/InitializeTest.cpp
index 0d6a0fd..d640a8d 100644
--- a/test/InitializeTest.cpp
+++ b/test/InitializeTest.cpp
@@ -20,7 +20,7 @@
 
 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
   if (Size == strlen(argv0) &&
-      !strncmp(reinterpret_cast<const char *>(Data), argv0, Size)) {
+      !memmem(Data, Size, argv0, Size)) {
     fprintf(stderr, "BINGO %s\n", argv0);
     exit(1);
   }