From a4eba1102b6842402f0768ddbcb9d1f28eedabe1 Mon Sep 17 00:00:00 2001
From: Chris Bednarski <banzaimonkey@gmail.com>
Date: Mon, 12 Oct 2015 22:04:13 -0700
Subject: [PATCH] Switch bool chan to struct chan for less memory usage

---
 packer/rpc/communicator.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packer/rpc/communicator.go b/packer/rpc/communicator.go
index 48c6ea09f..34bb86da2 100644
--- a/packer/rpc/communicator.go
+++ b/packer/rpc/communicator.go
@@ -139,10 +139,10 @@ func (c *communicator) Download(path string, w io.Writer) (err error) {
 	// Serve a single connection and a single copy
 	streamId := c.mux.NextId()
 
-	waitServer := make(chan bool)
+	waitServer := make(chan struct{})
 	go func() {
 		serveSingleCopy("downloadWriter", c.mux, streamId, w, nil)
-		waitServer <- true
+		close(waitServer)
 	}()
 
 	args := CommunicatorDownloadArgs{