multi: rename ReadTx to RTx

channeldb/meta_test.go

@@ -481,7 +481,7 @@ func TestMigrationDryRun(t *testing.T) {
 
 	// Check that version of database version is not modified.
 	afterMigrationFunc := func(d *DB) {
-		err := kvdb.View(d, func(tx kvdb.ReadTx) error {
+		err := kvdb.View(d, func(tx kvdb.RTx) error {
 			meta, err := d.FetchMeta(nil)
 			if err != nil {
 				t.Fatal(err)