Feedback: dep ensure output creeps to the right

[peterbourgon]

This is based on my first run with the tool. Running dep ensure would make this funny tree/waterfall thing in ASCII.

 6 transitively valid internal packages
 8 external packages imported from 6 projects
✓ select (root)
| ? attempt github.com/go-kit/kit with 2 pkgs; at least 1 versions to try
| | try github.com/go-kit/kit@master
| ✓ select github.com/go-kit/kit@master w/2 pkgs
| | ? attempt github.com/go-logfmt/logfmt with 1 pkgs; at least 1 versions to try
| | | try github.com/go-logfmt/logfmt@master
| | ✓ select github.com/go-logfmt/logfmt@master w/1 pkgs
| | | ? attempt github.com/kr/logfmt with 1 pkgs; at least 1 versions to try
| | | | try github.com/kr/logfmt@master
| | | ✓ select github.com/kr/logfmt@master w/1 pkgs
| | | | ? attempt github.com/go-stack/stack with 1 pkgs; at least 1 versions to try
| | | | | try github.com/go-stack/stack@master
| | | | ✓ select github.com/go-stack/stack@master w/1 pkgs
| | | | | ? attempt github.com/prometheus/client_golang with 2 pkgs; at least 1 versions to try
| | | | | | try github.com/prometheus/client_golang@master
| | | | | ✓ select github.com/prometheus/client_golang@master w/2 pkgs
| | | | | | ? attempt github.com/beorn7/perks with 1 pkgs; at least 1 versions to try
| | | | | | | try github.com/beorn7/perks@master
| | | | | | ✓ select github.com/beorn7/perks@master w/1 pkgs
| | | | | | | ? attempt github.com/oklog/ulid with 1 pkgs; 3 versions to try
| | | | | | | | try github.com/oklog/ulid@v0.2.0
| | | | | | | ✓ select github.com/oklog/ulid@v0.2.0 w/1 pkgs
| | | | | | | | ? attempt github.com/golang/protobuf with 1 pkgs; at least 1 versions to try
| | | | | | | | | try github.com/golang/protobuf@master
| | | | | | | | ✓ select github.com/golang/protobuf@master w/1 pkgs
| | | | | | | | | ? attempt github.com/pkg/errors with 1 pkgs; at least 1 versions to try
| | | | | | | | | | try github.com/pkg/errors@master                                                                                                                                                                              | | | | | | | | | ✓ select github.com/pkg/errors@master w/1 pkgs
| | | | | | | | | | ? attempt github.com/pborman/uuid with 1 pkgs; at least 1 versions to try
| | | | | | | | | | | try github.com/pborman/uuid@master

I guess it shouldn't do that.

[sdboyer]

(That output is all from gps' trace logging facility.) At minimum, we need to hide it unless -v is passed. I committed and pushed af226cb for that bit, so closing this.