- stats: use --workdir

stats/stats.go

@@ -12,7 +12,7 @@ type unitIDCallback func() int
 // filename: DB file name
 // limit: time limit (in days)
 // unitID: user function to get the current unit ID.  If nil, the current time hour is used.
-func New(filename string, limit int, unitID unitIDCallback) Stats {
+func New(filename string, limit int, unitID unitIDCallback) (Stats, error) {
 	return createObject(filename, limit, unitID)
 }