Treat install errors as failures
Treat install errors as failures

If there is an issue installing any of the packages treat it as
a failure.  This makes it easy to quickly identify packaging
mistakes.

Signed-off-by: Brian Behlendorf <32d50ad1e384dcb9a5bf7e40fa470df5dabaf348@llnl.gov>

zfsonlinux/zfs-buildbot,gmelikov/zfs-buildbot,zfsonlinux/zfs-buildbot,gmelikov/zfs-buildbot