The knotty UI just ignores these and so should RunningBuild, if these events
aren't handled the UI appears to hang.
Fixes [YOCTO #1665]
(Bitbake rev: 540ba78075bd525776aa23bf38bee66350c66534)
Signed-off-by: Joshua Lock <josh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>