Build Telnet for Apple Silicon

[BytesGuy]

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• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
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Updated Formula for Telnet to build for Apple Silicon. I was unable to run brew audit due to errors installing gems (will try to resolve this soon).

adam@Adams-Mac homebrew-core % file /usr/local/bin/telnet
/usr/local/bin/telnet: Mach-O 64-bit executable arm64

This is my first PR to homebrew-core, so apologies if something is not quite right!

[Bo98]

I was unable to run brew audit due to errors installing gems (will try to resolve this soon).

Yeah there's a couple known issues there. One being a bug with system Ruby on Apple Silicon that has been reported to Apple.

[claui]

errors installing gems (will try to resolve this soon)

Some analysis has been done in Homebrew/brew#7857 (look for FB7836181 there). It boils down to mkmf calling clang with -arch=arm64e while -arch=arm64 would have produced a working binary.

No idea how to coerce mkmf into using the proper architecture flavour.

[BytesGuy]

@Bo98 @claui Thanks, will take a look into that!

[Bo98]

Thanks!