To formalize they are now XML-compliant (with some asterisks.)
Also to help syntax highlighters work on them to make their content more
readable.
Also:
- Delete empty comment decorations.
- GHA/checksrc: simplify XML check.
- runtests: fail to load test data with XML prolog missing.
Follow-up to bfe6eb1c06#19927
Follow-up to 87ba80a6dfCloses#19946
Unify the case, punctuation and name of test case keywords so they can
be more easily selected or skipped when desired. Add a few keywords that
were missing. Fix a couple of typos in test names.
libcurl assumes that a --continue-at resumption is done to continue an
upload using the read callback and neither --data nor --form use
that and thus won't do what the user wants. Whatever the user wants
with this strange combination.
Add test 426 to verify.
Reported-by: Smackd0wn on github
Fixes#11081Closes#11083
