Fix getopts bug and be more specific when moving package file.

My recent commit adding the -c option and renaming the old -c to -r accidentally left out the new '-r' option from the getopts call.  Additionally, add ${pkgrel} to the mv line after building to be more specific about that file to move.

Signed-off-by: Travis Willard <travis@archlinux.org>
Signed-off-by: Aaron Griffin <aaronmgriffin@gmail.com>