Clarify that automatic subtitles are generated.

It wasn't clear what automatic word mean.

1 files changed, 1 insertions, 1 deletions

diff --git a/youtube_dl/YoutubeDL.py b/youtube_dl/YoutubeDL.py
index 1783ce01b..422f3ffca 100755
--- a/youtube_dl/YoutubeDL.py
+++ b/youtube_dl/YoutubeDL.py
@@ -156,7 +156,7 @@ class YoutubeDL(object):
     writethumbnail:    Write the thumbnail image to a file
     write_all_thumbnails:  Write all thumbnail formats to files
     writesubtitles:    Write the video subtitles to a file
-    writeautomaticsub: Write the automatic subtitles to a file
+    writeautomaticsub: Write the automatically generated subtitles to a file
     allsubtitles:      Downloads all the subtitles of the video
                        (requires writesubtitles or writeautomaticsub)
     listsubtitles:     Lists all available subtitles for the video