Every reg-test now runs without any warning, so let's acivate -dW by
default so the new ones will inheritate the option.
This patch reverts 9d511b3c ("REGTESTS: enable -dW on almost all tests
to fail on warnings") and adds -dW in the default HAPROXY_ARGS of
scripts/run-regtests.sh instead.
Now that warnings were almost all removed, let's enable zero-warning
via -dW. All tests were adjusted, but two:
- mcli/mcli_start_progs.vtc:
the programs section currently cannot be silenced
- stats/stats-file.vtc:
the warning comes from the stats file itself on comment lines.
All other ones are now OK.
I've had this test here never committed over the last 2.5 years, that
works fine and I didn't notice it was not part of the tree. It makes a
server return odd-sized chunked responses with short pauses between half
of thems and verifies they're not truncated on the client. It may detect
eventually state machine breakages, so better commit it.
