[lldb][NFC] Amend test workaround for asan failures

Author: felipepiovezan

lldb/test/API/lldbtest.py

@@ -94,7 +94,7 @@ def execute(self, test, litConfig):
         # libc++abi.dylib: terminating with uncaught exception of type \
         # std::__1::system_error: recursive_mutex lock failed: Invalid argument
         if (
-            'RESULT: PASSED' in err and
+            'PASS' in err and
             'recursive_mutex lock failed' in err and
             exitCode != 0
         ):