Remove default tag value from bottle_filename

We always call this method with an explicit tag.
Ensure that all required keys are passed to bottle_filename
mozjpeg 2.0.1
mozjpeg: update 2.0.1 bottle.

Closes #30884.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
youtube-dl 2014.07.15
youtube-dl: update 2014.07.15 bottle.

Closes #30885.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
vit: Fix installation of vit-commands help file

vit-commands is installed into 'etc', but it needs to go in
`$prefix/etc`, not in `$HOMEBREW_PREFIX/etc`. It's not actually a
configuration file, and vit looks for it in its keg prefix.

Ideally the file wouldn't even be symlinked into `$HOMEBREW_PREFIX/etc`
but I don't see any way to avoid that.
vit: add 1.2_1 bottle.