IPv6 conformance: Third time's the charm

[keithmattix]

net.SplitHostPort errors if ipv6 addresses aren't in brackets; previous implementation fixed a different problem (SplitHostPort removes brackets if they are passed in)

Fix IPv6 parsing in conformance tests

[aojea]

net.SplitHostPort errors if ipv6 addresses aren't in brackets

And that's the expectation , how can you get a host:port without brackets?

[keithmattix]

net.SplitHostPort errors if ipv6 addresses aren't in brackets

And that's the expectation , how can you get a host:port without brackets?

Indeed; our mesh conformance tests sometimes pass a raw podIP, so we need to change up the logic a bit

[aojea]

got it, thanks for clarifying 😄

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: howardjohn, keithmattix

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[robscott]

Thanks @keithmattix! This LGTM, but do you mind adding a release-note block?

[keithmattix]

Ah thanks for the reminder @robscott. Just added one 👍🏾

[robscott]

/cherry-pick release-0.8

[k8s-infra-cherrypick-robot]

@robscott: once the present PR merges, I will cherry-pick it on top of release-0.8 in a new PR and assign it to you.

In response to this:

/cherry-pick release-0.8

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[robscott]

Thanks @keithmattix!

/lgtm

[k8s-infra-cherrypick-robot]

@robscott: new pull request created: #2381

In response to this:

/cherry-pick release-0.8

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.