Change github /tarball/ URLs to /archive/ for formulae L-Z

This takes care of a `brew audit` complaint.

Closes #18828.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
youtube-dl 2013.03.29

Closes #18829.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
direnv 0.1.154

Closes #18826.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Redis 2.6.12

Closes #18824.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>