Adding ssh-config to vagrant plugin autocomplete. Was missing
@@ -113,7 +113,7 @@ case $state in
(box)
__vagrant-box
;;
- (up|provision|package|destroy|reload|ssh|halt|resume|status)
+ (up|provision|package|destroy|reload|ssh|ssh-config|halt|resume|status)
_arguments ':feature:__vm_list'
esac