Modify a warning message so that it doesn't sound as an error, e.g.:
"Obtained backtrace with 6 functions (but wanted at least 6)"
Update a comment too.
When debugging failures in this test, it's helpful to see as much output
as possible. So rather than returning immediately, let the code run as
far as it can. We still mark failures as soon as they happen.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
