Fix "pacman -U <url>" operations

Commit e6a6d307 detected complete part files by comparing a payload's
max_size to initial_size.  However, these values are also equal when we
use pacman -U on a URL as max_size is set to 0 in that case.  Add a further
condition to avoid that.

Signed-off-by: Allan McRae <allan@archlinux.org>

0 files changed, 0 insertions, 0 deletions