cmd/gofmt: fix const association to avoid inaccurate comment
The const parseTypeParams was grouped with printer-related consts in
gofmt.go, implicitly suggesting that it must be kept in sync with
go/format/format.go.
Change-Id: Ia65dc15c27fef2c389f963071252adee32ec6bd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/300451
Trust: Robert Findley <rfindley@google.com>
Run-TryBot: Robert Findley <rfindley@google.com>
TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>