Lints

[cep21]

Fix a few lints that are somewhat easier to think about.

Issue #, if available:

Description of changes:

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[cep21]

These changes come from https://godoc.org/golang.org/x/tools/cmd/goimports

[cep21]

I think there's a bug in the code for SQL causing this test to fail.

		if strings.Contains(u.Path, "@") {
			u, _ = url.Parse(fmt.Sprintf("%s//%s%%2F%s", u.Scheme, u.Host, u.Path[1:]))
		}

		// Strip password from user:password pair in address
		if u.User != nil {

The error return is ignored, which is resetting u to nil and causing the next u.User to nil panic.

[luluzhao]

@cep21 you are right. We should catch the error.

[luluzhao]

@cep21 , I am wondering why we close this PR?

[cep21]

Oh that was a mistake. I deleted the branch on my end and I think github closed the PR :/ . I reopened the PR