From c3de5152b37289f4912466b5954bef6592cd8da2 Mon Sep 17 00:00:00 2001
From: Bob Lantz <rlantz@cs.stanford.edu>
Date: Fri, 17 Jun 2016 17:13:57 -0700
Subject: [PATCH] Correctly print message if arping isn't installed

Change-Id: Ia8e6a305bebb51556974b72c83d86b472b6918e5
---
 tools/dev/mininet/onos.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/dev/mininet/onos.py b/tools/dev/mininet/onos.py
index bbc67d3803..8edc59468b 100755
--- a/tools/dev/mininet/onos.py
+++ b/tools/dev/mininet/onos.py
@@ -559,8 +559,8 @@ class ONOSCLI( OldCLI ):
         except:
             count = 1
         # Technically this check should be on the host
-        if '-U' not in quietRun( 'arping -h' ):
-            warn( 'Please install iputils-arping' )
+        if '-U' not in quietRun( 'arping -h', shell=True ):
+            warn( 'Please install iputils-arping.\n' )
             return
         # This is much faster if we do it in parallel
         for host in self.mn.net.hosts: