x/tools/cmd/goimports: define verbose flag in parseFlags

This will allow users to use a different flag name.

Change-Id: I252871b8efb6867e61ca507f59a9663cb7140b7d
Reviewed-on: https://go-review.googlesource.com/26632
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
1 file changed