To make special newlines more explicit and visible.
Mostly in `<protocol>` sections, some in `<data*>` and `<upload>`.
Reducing the number of `tests/data/test*`:
- CRLF newlines from 21535 to 11337.
- files with mixed newlines from 1335 to 707.
Also delete empty `<protocol>` sections.
Closes#19284
- Parse etag and content-disposition headers for 3xx replies.
For example, a server may send a content-disposition filename header
with a redirect reply (3xx) but not with the final response (2xx).
Without this change curl would ignore the server's specified filename
and continue to use the filename extracted from the user-specified URL.
Prior to this change, 75d79a4 had limited etag and content-disposition
to 2xx replies only.
Tests-by: Daniel Stenberg
Reported-by: Morgan Willcock
Fixes https://github.com/curl/curl/issues/13302Closes#13484
