perf, sched migration: Ignore unhandled task states

Stop printing an error message when we don't have the letter
for a given task state. All we need to know is if the task is
in the TASK_RUNNING state.

Signed-off-by: Frederic Weisbecker <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Nikhil Rao <[email protected]>
Cc: Tom Zanussi <[email protected]>

tools/perf/scripts/python/sched-migration.py

@@ -260,8 +260,7 @@ def taskState(state):
 	}
 
 	if state not in states:
-		print "Unhandled task state %d" % state
-		return ""
+		return "Unknown"
 
 	return states[state]