Toolchain flags (like -gcflags), build tags (including race and msan),
and cgo variables (including CGO_ENABLED, CGO_CPPFLAGS and others) are
now stamped into binaries.
For #37475
Change-Id: I9023e682c0618f91805434946c6bc937536b69bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/355493
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>