drum: fix broken app start
If we find an agent that has already been launched then we continue
iterating through the list of apps instead of stopping
Fixes:
=/ hig=(unit (unit server))
(~(get by fur) q.wel)
?: &(?=(^ hig) |(?=(~ u.hig) =(p.wel syd.u.u.hig)))
- this
+ $(servers t.servers)
=. fur
(~(put by fur) q.wel ~)
=. this
