Fixes a crash by git-annex repair when .git/annex/journal/ does not exist.
Normally the journal directory is created before withJournalHandle gets
run, but git-annex repair can be run in a situation where it does not
exist.
optparse-applicative switched to the 'prettyprinter' library in its latest
release, which means the 'H.text' function has disappeared. Instead, 'H.pretty'
can be used to convert all 'Pretty a' types into a renderable document.
Rather than after it, which can leave one wondering what file it's
downloading.
youtubeDl should not ever return Right Nothing in normal operation,
becaause it's already asked youtube-dl if it supports the url. So it
would have to succeed at that, then not download any file, but also
exit successfully, in order for the new error message to display.
Also display the name of yt-dlp when using it.
Fixes a failure like this:
curl: (33) HTTP server doesn't seem to support byte ranges. Cannot resume.
That happens because the whole web page has already been downloaded
previously, and kept, so now addurl tries to download it, and curl asks the
server to resume from the last byte. And youtube.com can't, for whatever
stupid reason.
So, delete the temp file after determining that youtube-dl can be used.
