tree 57fdf127a1a079e6a48020e3f505eefe064fceac
parent c639adb8fb6ac6aa2dfbe669bd171d84ddfc6ae9
author Jonathan Amsterdam <jba@google.com> 1715344198 -0400
committer Jonathan Amsterdam <jba@google.com> 1715370951 +0000

cmd/relnote: find cutoff date automatically

Look for the date of CL that opened the tree to find the
cutoff for TODOs.

Add a flag for the date in case that doesn't work.

For golang/go#64169.

Change-Id: I756e5622339f5e1963c39b8e0bbd7eeb3fc23d85
Reviewed-on: https://go-review.googlesource.com/c/build/+/584401
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Russ Cox <rsc@golang.org>