task_add(NULL, blah) is a fault, fix by using task_add(systq, blah).
task_add(NULL, blah) is a fault, fix by using task_add(systq, blah).

reported by josh grosse on misc@

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars