travis: switch to using the .x version notation for the go minor versions
travis: switch to using the .x version notation for the go minor versions

yonjah/rclone,olihey/rclone,yonjah/rclone,yonjah/rclone,seuffert/rclone,B4dM4n/rclone,ncw/rclone,seuffert/rclone,yonjah/rclone,ncw/rclone,olihey/rclone,B4dM4n/rclone,B4dM4n/rclone,ncw/rclone,olihey/rclone,B4dM4n/rclone,olihey/rclone,seuffert/rclone,ncw/rclone,seuffert/rclone