[plplot] Fix download errors

[jimwang118]

Fixes #34357

error: https://sourceforge.net/projects/plplot/files/plplot/5.15.0 Source/plplot-5.15.0.tar.gz/download?use_mirror=tenet: curl failed to download with exit code 3
curl: (3) URL rejected: Malformed input to a URL function

Fix download url error.

• Changes comply with the maintainer guide
• SHA512s are updated for each updated download
• The "supports" clause reflects platforms that may be fixed by this new version
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

Compile test pass with following triplets:

x64-osx

[BillyONeal]

This looks like a tooling bug. Did you manage to repro it originally?

[BillyONeal]

I managed to repro on macOS

[dg0yt]

The handling of space in URLs was intentionally changed in vcpkg tool some months ago.

[BillyONeal]

The handling of space in URLs was intentionally changed in vcpkg tool some months ago.

I checked and we are just passing this down to curl as a quoted argument so this seems to be a problem with specifically macos' copy of curl.

[BillyONeal]

The handling of space in URLs was intentionally changed in vcpkg tool some months ago.

Do you remember the change you mean here? The intent seems to be that we do the %20 for you but we expected curl to do it. (and curl does do it on Windows... which makes me wonder if we are passing parameters incorrectly...)

[BillyONeal]

I stand corrected; the reason it works on Windows is that there x-download is using WinHTTP.

[BillyONeal]

I'm going to merge this as-is: I think we should fix it in the tool, but as written fixes it until we do the tool release, and it doesn't harm anything.

[dg0yt]

Do you remember the change you mean here? The intent seems to be that we do the %20 for you but we expected curl to do it. (and curl does do it on Windows... which makes me wonder if we are passing parameters incorrectly...)

I failed to find the change which I believed to remember.
I found a curl change in 7.78.0: curl/curl#7073.