enable errorlint linter and fix issues #914
Merged
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This PR enables the errorlint linter in golangci-lint. This specifically ensures that errors are properly checked, avoiding things like direct equality (
==
) checks and type coercion/switch, to ensure as much compatibility with improvements to errors in go 1.13+.This is a continuation of #877, but will need to be followed up by one more PR to enable another linter to ensure we wrap errors coming from external packages.