From 5d60b9971784289acd4325a8ed7b5afd7bea05ca Mon Sep 17 00:00:00 2001
From: "Arend v. Reinersdorff" <arend@arendvr.com>
Date: Tue, 27 Mar 2018 17:25:29 +0200
Subject: [PATCH] [options] Mention comments support in --batch-file

---
 youtube_dl/options.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/youtube_dl/options.py b/youtube_dl/options.py
index 7d1bbc021..3e4ac03a2 100644
--- a/youtube_dl/options.py
+++ b/youtube_dl/options.py
@@ -676,7 +676,8 @@ def _comma_separated_values_options_callback(option, opt_str, value, parser):
     filesystem.add_option(
         '-a', '--batch-file',
         dest='batchfile', metavar='FILE',
-        help='File containing URLs to download (\'-\' for stdin)')
+        help="File containing URLs to download ('-' for stdin), one URL per line. "
+             "Lines starting with '#', ';' or ']' are considered as comments and ignored.")
     filesystem.add_option(
         '--id', default=False,
         action='store_true', dest='useid', help='Use only video ID in file name')