Restore `run_and_expect_silence` for `godep save`. (#3055)
Restore `run_and_expect_silence` for `godep save`. (#3055)


jfrazelle/boulder,lucasallan/boulder,jcjones/boulder,bmw/boulder,jfrazelle/boulder,letsencrypt/boulder,jcjones/boulder,bmw/boulder,letsencrypt/boulder,jcjones/boulder,jsha/boulder,jcjones/boulder,jfrazelle/boulder,lucasallan/boulder,jsha/boulder,letsencrypt/boulder,ibukanov/boulder,ibukanov/boulder,bmw/boulder,jfrazelle/boulder,jsha/boulder,lucasallan/boulder,ibukanov/boulder