Return empty array instead of null when tasks list is empty

[sheepkiller]

go lint doesn't like it, but it's nicer for clients

[sheepkiller]

Hi,

Another option is to return "make([]*types.EremeticTask, 0)" in ListRunningTasks() if database backend returns nothing

[alde]

You should also be able to do

tasks := []*types.EremeticTask{}

I think, which makes go lint happy

I did this in https://github.com/alde/physical/blob/master/physical.go#L89

[sheepkiller]

hi @alde,

nice. thanks you !

[keis]