bitbake: hob: format error messages properly

Error messages that use arguments need to be formatted properly, or we
don't get the full message. Use a formatter to do this when an error
occurs.

Partial fix for [YOCTO #2983].

(Bitbake rev: 6783538884adecd914909a9ab4ca73c27575f3ad)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/crumbs/hobeventhandler.py

@@ -177,7 +177,9 @@ class HobHandler(gobject.GObject):
 
         elif isinstance(event, logging.LogRecord):
             if event.levelno >= logging.ERROR:
-                self.error_msg += event.msg + '\n'
+                formatter = bb.msg.BBLogFormatter()
+                formatter.format(event)
+                self.error_msg += event.message + '\n'
 
         elif isinstance(event, bb.event.TargetsTreeGenerated):
             self.current_phase = "data generation"