cmd/go: work edit help text

[algonzalez]

In the following two lines, should the text "writing it back to go.mod." be "writing it back to go.work."

go/src/cmd/go/internal/workcmd/edit.go

Line 61 in 1eb1f62

writing it back to go.mod.

go/src/cmd/go/internal/workcmd/edit.go

Line 64 in 1eb1f62

writing it back to go.mod. The JSON output corresponds to these Go types:

using go version go1.18 windows/amd64

[findleyr]

CC @matloob