The CURLOPT_PINNEDPUBLICKEY option has conflicting documentation in the source
code and the documentation at https://curl.se
```c
/* The public key in DER form used to validate the peer public key
this option is used only if SSL_VERIFYPEER is true */
CURLOPT(CURLOPT_PINNEDPUBLICKEY, CURLOPTTYPE_STRINGPOINT, 230),
```
The above snippet is retrieved from
[curl.h](https://github.com/curl/curl/blob/f91be14bfb79021e3b9ba769955c1f2c4351e9bf/include/curl/curl.h#L1958)
from the GitHub repo. The comment above says that the CURLOPT_PINNEDPUBLICKEY
option is used only if SSL_VERIFYPEER is true. This is in direct contradiction
to the documentation
[here](https://curl.se/libcurl/c/CURLOPT_PINNEDPUBLICKEY.html). The
documentation says this:
- This option is independent of option
[CURLOPT_SSL_VERIFYPEER](https://curl.se/libcurl/c/CURLOPT_SSL_VERIFYPEER.html).
If you turn off that option then the peer is still verified by public key.
I hope this can be fixed to not be a source of confusion. Thanks!
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