Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.
This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.
Closes#8869
We have lots of unchecked msnprintf calls, and this particular msnprintf
call isn't more interesting than the others, but this one yields a Coverity
warning so let's implicitly silence it. Going over the other invocations
is probably a worthwhile project, but for now let's keep the static
analyzers happy.
Closes: #8831
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
