hwasan: adjust wording in expected output in tests

gcc/testsuite/ChangeLog:

	* c-c++-common/hwasan/asan-pr70541.c: Adjust wording of expected
	output.
	* c-c++-common/hwasan/heap-overflow.c: Likewise.
	* c-c++-common/hwasan/sanity-check-pure-c.c: Likewise.
	* c-c++-common/hwasan/use-after-free.c: Likewise.