Pass --no-warnings to yt-dlp

Notice a warning with -J2 causing git-annex progress output to get slightly
messed up.

Error output would also probably do that, so perhaps it should capture
stderr and only display it when yt-dlp exited nonzero?

This option might also make sense for youtube-dl, I don't have an
installation handy anymore to check.

Annex/YoutubeDl.hs

@@ -135,8 +135,12 @@ youtubeDl' url workdir p uo
 		, Param "--playlist-items", Param "0"
 		] ++
 			if isytdlp cmd
-				then 
-					[ Param "--progress-template"
+				then
+					-- Avoid warnings, which go to
+					-- stderr and may mess up
+					-- git-annex's display.
+					[ Param "--no-warnings"
+					, Param "--progress-template"
 					, Param progressTemplate
 					, Param "--print-to-file"
 					, Param "after_move:filepath"

CHANGELOG

@@ -14,6 +14,7 @@ git-annex (10.20240130) UNRELEASED; urgency=medium
   * Added annex.commitmessage-command config.
   * pre-commit: Avoid committing the git-annex branch
     (except when a commit is made in a view, which changes metadata).
+  * Pass --no-warnings to yt-dlp.
 
  -- Joey Hess <id@joeyh.name>  Mon, 29 Jan 2024 15:59:33 -0400