Remove arbitrary arguments in favor of parsing arguments from experiment files.

refs: #4611

Change-Id: Ic668b58766fef8a1e537ccaacf82230b3fb50923
diff --git a/ndn/experiments/experiment.py b/ndn/experiments/experiment.py
index 23efebd..5ada588 100644
--- a/ndn/experiments/experiment.py
+++ b/ndn/experiments/experiment.py
@@ -36,7 +36,7 @@
         self.strategy = args["strategy"]
         self.pctTraffic = args["pctTraffic"]
         self.nlsrSecurity = args["nlsrSecurity"]
-        self.arbArgs = args["arbArgs"]
+        self.arguments = args["arguments"]
 
         # Used to restart pings on the recovered node if any
         self.pingedDict = {}
@@ -148,4 +148,4 @@
 
     @staticmethod
     def register(name, experimentClass):
-        ExperimentManager.register(name, experimentClass)
+        ExperimentManager.register(name, experimentClass)
\ No newline at end of file