client: accept fractional inputs for TrafficPercentage

Change-Id: Ibe7ade5103e14f65fb30a157841ed44bc65f0d7d
diff --git a/ndn-traffic-client.conf.sample b/ndn-traffic-client.conf.sample
index 821528d..77c7514 100644
--- a/ndn-traffic-client.conf.sample
+++ b/ndn-traffic-client.conf.sample
@@ -16,7 +16,7 @@
 #
 
 # (Mandatory)
-#TrafficPercentage=NNI [0-100]
+#TrafficPercentage=Float [0-100]
 #Name=NDN Name
 #
 # (Optional)