bitbake: knotty: Show a link to the logfile for failed setscene tasks

Its not immediately obvious to the user that a logfile exists for a failed setscene
task. Add code to knotty to display where that logfile is in those cases.

[YOCTO #6055]

(Bitbake rev: 0664fa15597785dd90cf205531a9801e6da6ba47)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/knotty.py

@@ -355,6 +355,9 @@ def main(server, eventHandler, params, tf = TerminalFilter):
                 logger.handle(event)
                 continue
 
+            if isinstance(event, bb.build.TaskFailedSilent):
+                logger.warn("Logfile for failed setscene task is %s" % event.logfile)
+                continue
             if isinstance(event, bb.build.TaskFailed):
                 return_value = 1
                 logfile = event.logfile