Added output line to ping that is closer to ping program output

mininet/net.py

@@ -470,8 +470,11 @@ def ping( self, hosts=None, timeout=None ):
             output( '\n' )
         if packets > 0:
             ploss = 100 * lost / packets
+            received = packets - lost
             output( "*** Results: %i%% dropped (%d/%d lost)\n" %
                     ( ploss, lost, packets ) )
+            output( "*** Results: %i%% dropped (%d/%d received)\n" %
+                    ( ploss, received, packets ) )
         else:
             ploss = 0
             output( "*** Warning: No packets sent\n" )