net/http: clarify the precedence order for Request.FormValue
Fixes #64575
Change-Id: I0eaec642a9dc8ae3b273a6d41131cc7cb8332947
GitHub-Last-Rev:
17aa5170cbfe42cb86d56f1804266850d33c3eb5
GitHub-Pull-Request: golang/go#64578
Reviewed-on: https://go-review.googlesource.com/c/go/+/547855
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>