youtube-dl: add libav for post-process caveats.

Closes Homebrew/legacy-homebrew#36331. Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Homebrew · Jan 29, 2015 · 909fb22 · 909fb22
1 parent 1442b46
commit 909fb22
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Formula/youtube-dl.rb b/Formula/youtube-dl.rb
@@ -31,7 +31,7 @@ def install
   end
 
   def caveats
-    "To use post-processing options, `brew install ffmpeg`."
+    "To use post-processing options, `brew install ffmpeg` or `brew install libav`."
   end
 
   test do