[release-branch.go1.24] runtime/debug: document DefaultGODEBUG as a BuildSetting
For #66465
Fixes #73678
Change-Id: I60c017ddba29fa5b452b665d8521cd6c8e20438c
Reviewed-on: https://go-review.googlesource.com/c/go/+/597979
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: qiu laidongfeng2 <2645477756@qq.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
(cherry picked from commit
c4136a433c28eb12abad777f8e74087ecf6e21f4)
Reviewed-on: https://go-review.googlesource.com/c/go/+/671995
Reviewed-by: Sean Liao <sean@liao.dev>
Reviewed-by: Michael Knyszek <mknyszek@google.com>