It is expected that load_cachfile() returns an integer indicating how
many entries were loaded from the cache. In the event the cache needs to
be rebuilt, 0 must be returned to prevent python from attempting to add
an None and an integer together.
(Bitbake rev: 3459d98fbc280637ecb36961bda8436818ee51e5)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>