os: treat Getwd result of EINVAL/ERANGE the same as ENAMETOOLONG
At least Darwin and OpenBSD seem to return EINVAL if the resulting
name would be too long. Solaris seems to return ERANGE.
Fixes #69233
Fixes #69234
Change-Id: I9b51d41461e9576c633bf2fc0e96ca3e4d986255
Reviewed-on: https://go-review.googlesource.com/c/go/+/609579 Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>