-after pressing "build image" button, hob was freezing because it didn't
receive well the log file
[YOCTO #3398]
(Bitbake rev: e0bd4c4616511ec7918f801fb5e04984ebea8158)
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>