_extract_m3u8_formats is renamed to _extract_m3u8_formats_and_subtitles
and extended to handle subtitle tracks instead of skipping them;
a wrapper with the old name is provided for compatibility.
_parse_m3u8_formats is likewise renamed and extended, but without adding
the compatibility wrapper; the test suite is adjusted to test the enhanced
method instead.
* Quote the `$0` variable to correctly handle spaces
* Change the shebang line to `/bin/sh` to avoid unnecessarily depending on bash
* Use the `exec` command to avoid having the shell process linger unnecessarily
* Change the mode to make the script directly executable
Authored by: fstirlitz
:ci skip all
With this change, the merge operator may join any number of media streams,
video or audio. The streams are downloaded in the order specified.
Also, fix the metadata post-processor so that it doesn't leave out
any streams.
Felix S
