errors: fix golint warning
errors: fix golint warning

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