internal/poll: update WaitWrite comment
Change-Id: Id2999d95f344b3e30d98682aac5da630d808ce2d
GitHub-Last-Rev:
69c207f51c63349ee1cf34f0b96bcd03a1e33e2c
GitHub-Pull-Request: golang/go#67732
Reviewed-on: https://go-review.googlesource.com/c/go/+/589396
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>