cmd/testnet-reset: specify host location

Currently testnet-reset assumes the host's location.
The location should be set explicitly so it is only
allowed to run at midnight PST. Currently the filter
cancels the job during valid execution times.

Closes #292

cmd/testnet-reset/main.go

@@ -47,11 +47,15 @@ func main() {
 	ctx := context.Background()
 	env.Parse()
 
-	cur := time.Now()
+	pst, err := time.LoadLocation("America/Los_Angeles")
+	if err != nil {
+		log.Fatal(err)
+	}
+	cur := time.Now().In(pst)
 	max := cur.Add(time.Hour).Weekday()
 	min := cur.Add(-1 * time.Hour).Weekday()
 	if *scheduled && (min != time.Saturday || max != time.Sunday) {
-		log.Println("only run Sunday at midnight +/- an hour")
+		log.Println("only run Sunday at midnight PST +/- an hour")
 		os.Exit(0)
 	}