Refactor guild finding code (discord)

[qaisjp]

No description provided.

[qaisjp]

That package's errors.Wrap function is used frequently in my feature/transmitter branch: master...qaisjp:feature/transmitter.

And this package is actually already pulled in by multiple things we depend on, and this just makes it available inside matterbridge:

matterbridge/go.sum

Lines 665 to 669 in ad95e35

	github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
	github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
	github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
	github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
	github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=

Do you still want me to eliminate this dependency?

[qaisjp]

Hmm, looks like there's a "new" way of wrapping errors: https://blog.golang.org/go1.13-errors

I'll move the code I've written to do what that says, and get rid of github.com/pkg/errors

[42wim]

wrt pkg/errors, if you need it you can use it but I think there was no reason to use it here for what you are/were using it for :)

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