net: don't rely on system hosts in TestCVE202133195
Also don't unnecessarily deref the error return. Fixes #46504 Change-Id: I22d14ac76776f8988fa0774bdcb5fcd801ce0185 Reviewed-on: https://go-review.googlesource.com/c/go/+/324190 Trust: David Chase <drchase@google.com> Trust: Damien Neil <dneil@google.com> Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by:Damien Neil <dneil@google.com>
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