Closes ticket 32209.

Using a standard ending here will let other tools that expect
markdown understand our output here.

This commit was automatically generated with:

   for fn in $(find src -name '*.dox'); do \
      git mv "$fn" "${fn%.dox}.md"; \
   done

This is an automatically generated commit, made with:

find src -name '*.dox' | \
   xargs  perl -i -ne 'print unless (m#^\s*/?\*\*/?\s*$#);'

Also, I have to add src/rust/registry to the excluded paths, since
it includes .md files that Doxygen can't handle.

(Thanks, Taylor!)

"ours" to avoid version bump.

Fixes bug 32495.

Fixes bug 32496; bug not in any released Tor.

Closes ticket 32245.

Closes ticket 32244.

(Or any files that start with "." or "#".)

Obviously correct changes to already-reviewed code.

There are now no HAVE_MODULE_{DIRAUTH,RELAY} inside functions.

Closes ticket 32163.

When the relay module is disabled, we change the ClientOnly
default to 1. But we forgot to mention that in the changes file.

Part of 32451.

Part of 32451.

These failure cases can be used to test the failure behaviour
and failure logs of test_parseconf.sh.

See the README for details.

Part of 32451.

Cleanup after 32451.

Part of 32451.

Remove more duplicate code.
Eliminate some arguments.
Rewrite some comments.

Cleanup after 32451.

Remove duplicate code, and standardise similar behaviour.
Add some additional error checking.

Cleanup after 32451.

Part of 32451.

Make spacing, quotes, and env vars consistent.

Cleanup after 32451 and 32468.

When we added the $FILTER for Windows newlines, we made
the pipeline always exit successfully, even if tor failed.

Fixes bug 32468; bugfix on 0.4.2.1-alpha.

Part of 32451.

The "expected_log" file is a set of patterns that matches the
output of "tor --verify-config". Unlike "error", it expects a
successful exit status.

Part of 32451.

Part of 32451.

There are lots of different files now, so having Config and Result
sections is helpful.

Part of 32451.