style: change if-else branch

cluster.go

@@ -233,18 +233,18 @@ func (c *clusterClient) _refresh() (err error) {
 
 	slots := [16384]conn{}
 	for master, g := range groups {
-		nodesCount := len(g.nodes)
-		for _, slot := range g.slots {
-			for i := slot[0]; i <= slot[1]; i++ {
-				var cc conn
-				if c.opt.ReplicaOnly && nodesCount > 1 {
-					addr := g.nodes[1+rand.Intn(nodesCount-1)]
-					cc = conns[addr]
-				} else {
-					cc = conns[master]
+		if c.opt.ReplicaOnly && len(g.nodes) > 1 {
+			nodesCount := len(g.nodes)
+			for _, slot := range g.slots {
+				for i := slot[0]; i <= slot[1]; i++ {
+					slots[i] = conns[g.nodes[1+rand.Intn(nodesCount-1)]]
+				}
+			}
+		} else {
+			for _, slot := range g.slots {
+				for i := slot[0]; i <= slot[1]; i++ {
+					slots[i] = conns[master]
 				}
-
-				slots[i] = cc
 			}
 		}
 	}