runtime/debug: document DefaultGODEBUG as a BuildSetting

Fixes #66465

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>

diff --git a/src/runtime/debug/mod.go b/src/runtime/debug/mod.go
index 53bbf1d847056877696ebf8744402828967482f3..3eab08744f5c298e81d46369d810cf3c926e83d7 100644 (file)
--- a/src/runtime/debug/mod.go
+++ b/src/runtime/debug/mod.go
@@ -77,6 +77,7 @@ type Module struct {
 //   - CGO_CPPFLAGS: the effective CGO_CPPFLAGS environment variable
 //   - CGO_CXXFLAGS:  the effective CGO_CXXFLAGS environment variable
 //   - CGO_LDFLAGS: the effective CGO_LDFLAGS environment variable
+//   - DefaultGODEBUG: the effective GODEBUG settings
 //   - GOARCH: the architecture target
 //   - GOAMD64/GOARM/GO386/etc: the architecture feature level for GOARCH
 //   - GOOS: the operating system target