fs: streams emitClose

[ronag]

Allow passing emitClose: true to fs streams.

[gntem]

hello tried to make this I see there are some backwards compatibility concerns

how does this look ?

diff --git a/lib/internal/fs/streams.js b/lib/internal/fs/streams.js
index dfff08dbbd..d8776598f7 100644
--- a/lib/internal/fs/streams.js
+++ b/lib/internal/fs/streams.js
@@ -65,7 +65,9 @@ function ReadStream(path, options) {
     options.highWaterMark = 64 * 1024;
 
   // For backwards compat do not emit close on destroy.
-  options.emitClose = false;
+  if (typeof options.emitClose !== 'boolean') {
+    options.emitClose = false;
+  }
 
   Readable.call(this, options);
 
@@ -241,7 +243,9 @@ function WriteStream(path, options) {
   options = copyObject(getOptions(options, {}));
 
   // For backwards compat do not emit close on destroy.
-  options.emitClose = false;
+  if (typeof options.emitClose !== 'boolean') {
+    options.emitClose = false;
+  }
 
   Writable.call(this, options);
 

[ronag]

instead of checking for typeof boolean I would check for undefined