fix: hardcoded paths in p4 L1 fwd test

Closes #219 (closed)

src/tests/p4-fwd-l1/mininet/2switch1path.py

@@ -73,12 +73,12 @@ class TutorialTopo(Topo):
 def main():
     net = Mininet(topo=TutorialTopo(), controller=None)
     net.start()
-    
+
     client = net.hosts[0]
     client.setARP('10.0.0.2', 'aa:bb:cc:dd:ee:22')
     server = net.hosts[1]
     server.setARP('10.0.0.1', 'aa:bb:cc:dd:ee:11')
-    
+
     CLI(net)
     net.stop()
     print '#' * 80