stream: Empty strings/buffers do not signal EOF any longer

lib/_stream_readable.js

@@ -229,7 +229,7 @@ Readable.prototype.read = function(n) {
   else
     ret = null;
 
-  if (ret === null || (!state.objectMode && ret.length === 0)) {
+  if (ret === null) {
     state.needReadable = true;
     n = 0;
   }