* Enable linter: stylecheck
This enabled the stylecheck linter, but excludes some staticchecks for
now. The following are ignored because they will take a bit of time to
address, but the intention is to address them and remove them from the
exclusion list.
ST1000: at least one file in a package should have a package comment
ST1003: golang naming standards
ST1008: error should be returned as the last argument
ST1016: methods on the same type should have the same receiver name
ST1020: comment on exported function
* Address ST1015
For some reason this failed in CI but not locally. I can't figure out
why that check isn't happening locally. This just moves the switch
statements around so that the `default` is the first (or last) item.
* Adjust error string in test to match case-adjusted error
* Remove TestCloseTimeout
