vcsserver: removed xargs

vcsserver/lib/_vendor/statsd/base.py

@@ -49,7 +49,7 b' class StatsClientBase(object):'
         statsd = StatsdClient.statsd
         with statsd.timer('bucket_name', auto_send=True) as tmr:
             # This block will be timed.
-            for i in xrange(0, 100000):
+            for i in range(0, 100000):
                 i ** 2
         # you can access time here...
         elapsed_ms = tmr.ms