Minor cleanups.

Change-Id: Ia8685d8439a421fe2143d9ec7120d5bb5ab88d78

notification/notification.go

@@ -23,9 +23,9 @@ import (
 	"time"
 
 	"github.com/golang/glog"
+	"github.com/prometheus/client_golang/prometheus"
 
 	clientmodel "github.com/prometheus/client_golang/model"
-	"github.com/prometheus/client_golang/prometheus"
 
 	"github.com/prometheus/prometheus/utility"
 )

rules/ast/functions.go

@@ -275,7 +275,7 @@ func dropCommonLabelsImpl(timestamp clientmodel.Timestamp, args []Node) interfac
 	}
 
 	for _, el := range vector {
-		for k, _ := range el.Metric {
+		for k := range el.Metric {
 			if _, ok := common[k]; ok {
 				delete(el.Metric, k)
 			}