chore: Remove dependency on multierror #5275
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what
Replace hashicorp's multierror with functionality from the standard library. Also in the edited files, mostly to prevent import naming collisions, replaced pkg/errors with stdlib errors
why
While investigating #5269, I found a number of the more complicated usages of
pkg/errors
were due to https://github.com/hashicorp/go-multierror.Go 1.20 introduced
errors.Join
which essentially has the same functionality as multierror. Even hashicorp itself is working to switch to the stdlib: hashicorp/terraform-provider-aws#32140.This also cleans up some awkward logic to smooth over the mixed use of standard errors and multierrors.
tests
Ran unit tests.
references