Fix the indent in the coverage.cmake file

[skip-ci]

Add two e2e tests on adhoc commands

Use g++ for the openbsd tests

Disable the output in the config unit test

ci: Add a test on openbsd

e2e: test the private and no-copy thingy

e2e: the port to use should be an int, not a string

On EINPROGRESS, we need to also check for read events (because openBSD lies)

“It is possible to select(2) or poll(2) for completion by selecting the
socket for writing”

Yeah, sure, “writing”…

Fix an off-by-one issue in the POLL code

Conditionally use strptime if we don’t have std::get_time

Include a private and no-copy nodes in private <message/> to avoid carbon duplication

Parse the timezone myself, instead of using the broken strptime

See

https://lab.louiz.org/louiz/biboumi/issues/3215
https://github.com/andikleen/glibc/blob/master/time/strptime_l.c#L746-L747

for why strptime() sucks

We use std::get_time now, to parse the date and time. And we parse the
timezone by hand.

fix #3215

Fix the muc#traffic response

Was completely broken, and the test was just useless

Correctly set status="110" in the presence for the target of a kick

e2e: add expec_unordered to be able to test things even if the arrive in a different order

Also, some tests that were raising some exception and thus were not ran at all

fix #3213

Cleanup __main__.py a little bit

Add a coverity badge to the readme

Remove a potential nullptr dereference, on mam queryid

fix coverity CID 153376

Add a coverity job that runs cov-build and submit the archive to coverity.com

Fix the argument of strerror after bind()

fix coverity CID 134470