-after pressing "build image" button, hob was freezing because it didn't
receive well the log file
[YOCTO #3398]
(Bitbake rev: e3619e34d43c3f7725fc83c362d8cbd07e153ebe)
Signed-off-by: Cristiana Voicu <cristiana.voicu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>