Use hkp:// and port 80 for key retrieval on restricted networks

At both...

• Home, on a Spectrum cable internet connection in the Dallas area
• At work, in a heavily firewalled / proxied university network

... it is not possible to retrieve keys from --keyserver keyserver.ubuntu.com as this is using port 11371 on which outbound connections fail.

Most keyservers, including keyserver.ubuntu.com listen on the hkp hkps protocol at port 80 443 for this reason. I think it would be good to use --keyserver hkps://keyserver.ubuntu.com:443 by default to avoid issues on restrictive networks.

If this is not accepted I'll just need to manually modify when I am working on the package helpers.

changed title from Use hkp:// and port 80 for key retrival on restricted networks to Use hkp:// and port 80 for key retrieval on restricted networks

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• 2f1db967 - Switch to hkps:// :443

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@ruben - modified for hkps:// :443

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• 5aa2d3a3 - Add copyright line

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mentioned in commit 76a489ca

merged