Change generic comment syntax to real generic syntax.

lib/src/byte_collector.dart

Index: lib/src/byte_collector.dart
diff --git a/lib/src/byte_collector.dart b/lib/src/byte_collector.dart
index 3b4f075034f853275ab587434e1147568c3b47e2..c7fe752fb10405e1eea5fc16dffbbb6cdb0cb154 100644
--- a/lib/src/byte_collector.dart
+++ b/lib/src/byte_collector.dart
@@ -13,7 +13,7 @@ import "dart:typed_data";
 /// If any of the input data are not valid bytes, they will be truncated to
 /// an eight-bit unsigned value in the resulting list.
 Future<Uint8List> collectBytes(Stream<List<int>> source) {
-  var byteLists = List<List<int>>[];
+  var byteLists = <List<int>>[];
   var length = 0;
   var completer = new Completer<Uint8List>.sync();
   source.listen(