bitbake: knotty: Move second event check into a proper block

so that it doesn't check it twice for non-empty events

(Bitbake rev: e304ace6d8f7d0808ee401b7c01146b2798a81b4)

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/knotty.py

@@ -321,8 +321,8 @@ def main(server, eventHandler, params, tf = TerminalFilter):
                     break
                 termfilter.updateFooter()
                 event = eventHandler.waitEvent(0.25)
-            if event is None:
-                continue
+                if event is None:
+                    continue
             helper.eventHandler(event)
             if isinstance(event, bb.runqueue.runQueueExitWait):
                 if not main.shutdown: