Avoid nil dereference in Queryx/QueryRowx on error
Avoid nil dereference in Queryx/QueryRowx on error

cortex/sqlx,wmydz1/sqlx,larsth/sqlx,snikch/sqlx,proteneer/sqlx,aiyi/sqlx,outrightmental/go-sqlx,johnsto/sqlx,adcaes/sqlx,jmoiron/sqlx,StabbyCutyou/sqlx,beni55/sqlx