[libcxx-fuzzing] Fixed bug found by -Wstring-concatenation

Author: davidbolvansky

libcxx/test/libcxx/fuzzing/fuzzer_test.h

@@ -17,7 +17,7 @@
 #include "../../../fuzzing/fuzzing.cpp"
 
 const char* TestCaseSetOne[] = {"", "s", "bac",
-                            "bacasf"
+                            "bacasf",
                             "lkajseravea",
                             "adsfkajdsfjkas;lnc441324513,34535r34525234",
                             "b*c",