Add helper function for duplicating depends lists

We do this in several of the package duplication steps; add a helper
function for doing so to reduce some of the repetitive code.

Also add a free_deplist function for our repeated depend list free calls
of both the data and the list.

Signed-off-by: Dan McGee <dan@archlinux.org>

0 files changed, 0 insertions, 0 deletions