docs: update IETF links to use datatracker

The tools.ietf.org domain has been deprecated a while now, with the
links being redirected to datatracker.ietf.org.

Rather than make people eat that redirect time, this change switches the
URL to a more canonical source.

Closes #8317
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lucas 2022-01-21 18:52:33 +00:00 committed by Daniel Stenberg
parent 6c82e3f42d
commit 519b62ccd0
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18 changed files with 33 additions and 33 deletions

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@ -118,4 +118,4 @@ can use that hint to create a new connection asynchronously. For libcurl, we
may introduce a way to bring such clues to the application and/or let a
subsequent request use the alternate route automatically.
[Detailed in RFC 7838](https://tools.ietf.org/html/rfc7838)
[Detailed in RFC 7838](https://datatracker.ietf.org/doc/html/rfc7838)