1 files changed, 12 insertions, 8 deletions
diff --git a/deps/npm/node_modules/readable-stream/lib/_stream_readable.js b/deps/npm/node_modules/readable-stream/lib/_stream_readable.js
index 208cc65f1c..3a7d42d62b 100644
--- a/deps/npm/node_modules/readable-stream/lib/_stream_readable.js
+++ b/deps/npm/node_modules/readable-stream/lib/_stream_readable.js
@@ -10,6 +10,10 @@ var processNextTick = require('process-nextick-args');
 var isArray = require('isarray');
 /*</replacement>*/
 
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
 Readable.ReadableState = ReadableState;
 
 /*<replacement>*/
@@ -57,6 +61,8 @@ var StringDecoder;
 util.inherits(Readable, Stream);
 
 function prependListener(emitter, event, fn) {
+  // Sadly this is not cacheable as some libraries bundle their own
+  // event emitter implementation with them.
   if (typeof emitter.prependListener === 'function') {
     return emitter.prependListener(event, fn);
   } else {
@@ -68,7 +74,6 @@ function prependListener(emitter, event, fn) {
   }
 }
 
-var Duplex;
 function ReadableState(options, stream) {
   Duplex = Duplex || require('./_stream_duplex');
 
@@ -138,7 +143,6 @@ function ReadableState(options, stream) {
   }
 }
 
-var Duplex;
 function Readable(options) {
   Duplex = Duplex || require('./_stream_duplex');
 
@@ -461,7 +465,7 @@ function maybeReadMore_(stream, state) {
 // for virtual (non-string, non-buffer) streams, "length" is somewhat
 // arbitrary, and perhaps not very meaningful.
 Readable.prototype._read = function (n) {
-  this.emit('error', new Error('not implemented'));
+  this.emit('error', new Error('_read() is not implemented'));
 };
 
 Readable.prototype.pipe = function (dest, pipeOpts) {
@@ -639,16 +643,16 @@ Readable.prototype.unpipe = function (dest) {
     state.pipesCount = 0;
     state.flowing = false;
 
-    for (var _i = 0; _i < len; _i++) {
-      dests[_i].emit('unpipe', this);
+    for (var i = 0; i < len; i++) {
+      dests[i].emit('unpipe', this);
     }return this;
   }
 
   // try to find the right one.
-  var i = indexOf(state.pipes, dest);
-  if (i === -1) return this;
+  var index = indexOf(state.pipes, dest);
+  if (index === -1) return this;
 
-  state.pipes.splice(i, 1);
+  state.pipes.splice(index, 1);
   state.pipesCount -= 1;
   if (state.pipesCount === 1) state.pipes = state.pipes[0];