api/auth: make go vet happier
api/auth: make go vet happier

cgvarela/tsuru,cgvarela/tsuru,tuxmonteiro/tsuru,RichardKnop/tsuru,tsuru/tsuru,hugoantunes/tsuru,Endika/tsuru,ArxdSilva/tsuru,jblancett/tsuru,firebitsbr/tsuru,kgrvamsi/tsuru,4eek/tsuru,tsuru/tsuru,cezarsa/tsuru,4eek/tsuru,Endika/tsuru,cezarsa/tsuru,jblancett/tsuru,mderaldo/tsuru,guilhermebr/tsuru,ggarnier/tsuru,tuxmonteiro/tsuru,tsuru/tsuru,hcxiong/tsuru,kgrvamsi/tsuru,cezarsa/tsuru,gciotta/tsuru,hcxiong/tsuru,guilhermebr/tsuru,cgvarela/tsuru,tsuru/tsuru,cezarsa/tsuru,jblancett/tsuru,kgrvamsi/tsuru,firebitsbr/tsuru,gwmoura/tsuru,ggarnier/tsuru,gwmoura/tsuru,tuxmonteiro/tsuru,firebitsbr/tsuru,Endika/tsuru,hcxiong/tsuru,guilhermebr/tsuru,mderaldo/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,RichardKnop/tsuru,ArxdSilva/tsuru,gwmoura/tsuru,guilhermebr/tsuru,RichardKnop/tsuru,gciotta/tsuru,gciotta/tsuru,4eek/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,hugoantunes/tsuru,mderaldo/tsuru