Update Include/pyport.h

Co-authored-by: Petr Viktorin <encukou@gmail.com>

Author: petervanvugt

Include/pyport.h

@@ -553,7 +553,7 @@ extern "C" {
 #    if !defined(_Py_MEMORY_SANITIZER)
 #      define _Py_MEMORY_SANITIZER
 #      define _Py_NO_SANITIZE_MEMORY __attribute__((no_sanitize_memory))
-#      define _Py_MSAN_UNPOISON(p, sz)  (__msan_unpoison(p, sz))
+#      define _Py_MSAN_UNPOISON(PTR, SIZE)  (__msan_unpoison(PTR, SIZE))
 #    endif
 #  endif
 #  if __has_feature(address_sanitizer)