Fix govet error
Fix govet error

Signed-off-by: Andres Taylor <c60aac06940d152b513cf6eb3d695fd9afbead9b@squareup.com>

tinyspeck/vitess,davygeek/vitess,HubSpot/vitess,vitessio/vitess,mahak/vitess,davygeek/vitess,dcadevil/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,mahak/vitess,vitessio/vitess,HubSpot/vitess,dcadevil/vitess,tinyspeck/vitess,HubSpot/vitess,dcadevil/vitess,enisoc/vitess,enisoc/vitess,HubSpot/vitess,mahak/vitess,dcadevil/vitess,davygeek/vitess,vitessio/vitess,dcadevil/vitess,dcadevil/vitess,dcadevil/vitess,enisoc/vitess,davygeek/vitess,tinyspeck/vitess,vitessio/vitess,mahak/vitess,HubSpot/vitess,enisoc/vitess,HubSpot/vitess,davygeek/vitess,mahak/vitess,enisoc/vitess,enisoc/vitess,enisoc/vitess,vitessio/vitess,vitessio/vitess,HubSpot/vitess,tinyspeck/vitess,mahak/vitess,HubSpot/vitess,tinyspeck/vitess,davygeek/vitess,davygeek/vitess,tinyspeck/vitess,mahak/vitess