Enable SO_REUSEADDR for cord test tcp server
diff --git a/src/test/utils/CordTestServer.py b/src/test/utils/CordTestServer.py
index 75acf3d..dbf20f3 100644
--- a/src/test/utils/CordTestServer.py
+++ b/src/test/utils/CordTestServer.py
@@ -20,7 +20,7 @@
             self.request.sendall('DONE')
 
 class ThreadedTestServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
-    pass
+    allow_reuse_address = True
 
 @nottest
 def cord_test_server_start():