tests: remove leading spaces from some tags

The threee tags `<name>`, `</name>` and `<command>` were frequently used
with a leading space that this removes. The reason this habbit is so

tests: remove leading spaces from some tags

The threee tags `<name>`, `</name>` and `<command>` were frequently used
with a leading space that this removes. The reason this habbit is so
widespread in testcases is probably that they have been copy and pasted.

Hence, fixing them all now might curb this practice from now on.

Closes #12028

show more ...

tests: use %LOGDIR to refer to the log directory

This will allow it be set dynamically.

Ref: #10818

http: don't send 100-continue for short PUT requests

This is already how curl is documented to behave in Everything curl, but
in actuality only short POSTs skip this. This should knock 3

http: don't send 100-continue for short PUT requests

This is already how curl is documented to behave in Everything curl, but
in actuality only short POSTs skip this. This should knock 30 seconds
off a full run of the test suite since the 100-continue timeout will no
longer be hit.

Closes #10740

show more ...

rustls: switch read_tls and write_tls to callbacks

And update to 0.6.0, including a rename from session to connection for
many fields.

Closes #7071