Should xfstest generic/388 be using _require_command for fsstress?

[David Howells <dhowells@xxxxxxxxxx>]

| 388:45:	$KILLALL_PROG -9 fsstress > /dev/null 2>&1
| 388:58:_require_command "$KILLALL_PROG" "killall"
| 388:79:		$KILLALL_PROG -9 fsstress > /dev/null 2>&1

Should this be using _require_command for fsstress and $FSSTRESS_PROG like the
other tests that use fsstress?

Also, should 388 be printing "Silence is golden" at the end of the test?

David