From acfccacad5555c21d649729c5e2cb237a70f46e6 Mon Sep 17 00:00:00 2001
From: Remita Amine <remitamine@gmail.com>
Date: Sat, 13 Aug 2016 10:26:02 +0100
Subject: [PATCH] [downloader/external:curl] Clarify why CurlFD should not
 capture stderr

---
 youtube_dl/downloader/external.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/youtube_dl/downloader/external.py b/youtube_dl/downloader/external.py
index f0c30007f7..cf45562217 100644
--- a/youtube_dl/downloader/external.py
+++ b/youtube_dl/downloader/external.py
@@ -114,6 +114,7 @@ class CurlFD(ExternalFD):
 
         self._debug_cmd(cmd)
 
+        # curl writes the progress to stderr so don't capture it.
         p = subprocess.Popen(cmd)
         p.communicate()
         return p.returncode