log: changed if-else blocks to conform with golint (#16661)

log/handler.go

@@ -234,9 +234,8 @@ func FailoverHandler(hs ...Handler) Handler {
 			err = h.Log(r)
 			if err == nil {
 				return nil
-			} else {
-				r.Ctx = append(r.Ctx, fmt.Sprintf("failover_err_%d", i), err)
 			}
+			r.Ctx = append(r.Ctx, fmt.Sprintf("failover_err_%d", i), err)
 		}
 
 		return err
@@ -320,13 +319,12 @@ func evaluateLazy(lz Lazy) (interface{}, error) {
 	results := value.Call([]reflect.Value{})
 	if len(results) == 1 {
 		return results[0].Interface(), nil
-	} else {
+	}
 	values := make([]interface{}, len(results))
 	for i, v := range results {
 		values[i] = v.Interface()
 	}
 	return values, nil
-	}
 }
 
 // DiscardHandler reports success for all writes but does nothing.