Unblock stdout in testing slave script

selfdrive/test/eon_testing_slave.py

@@ -8,11 +8,15 @@ from common.timeout import Timeout
 from http.server import BaseHTTPRequestHandler, HTTPServer
 from os.path import expanduser
 from threading import Thread
+from selfdrive.manager import unblock_stdout
 
 from common.params import Params
 import os
 
 
+if __name__ == "__main__":
+  unblock_stdout()
+
 MASTER_HOST = "testing.comma.life"