Fixed the path of the onos-netcfg

Change-Id: I60e5cdf6c8863c235395d341c4db21d4c5ba2ef3
diff --git a/tools/test/topos/metro.py b/tools/test/topos/metro.py
index 10bba5f..76f4ed2 100755
--- a/tools/test/topos/metro.py
+++ b/tools/test/topos/metro.py
@@ -232,8 +232,8 @@
         with open(filename, 'w') as outfile:
             json.dump(domainCfgs[i], outfile, indent=4, separators=(',', ': '))
 
-        output = quietRun('%s/tools/test/bin/onos-netcfg %s %s &'\
-                           % (LINCSwitch.onosDir,
+        output = quietRun('%s/onos-netcfg %s %s &'\
+                           % (LINCSwitch.runPackDir,
                               domains[i].getControllers()[0].ip,
                               filename), shell=True)
         # successful output contains the two characters '{}'