Change job.new_container to just use root='' as the default.

Signed-off-by: John Admanski <jadmanski@google.com>



git-svn-id: http://test.kernel.org/svn/autotest/trunk@1385 592f7852-d20e-0410-864c-8624ca9c26a4
diff --git a/client/bin/job.py b/client/bin/job.py
index c05ceaa..d88c5d3 100755
--- a/client/bin/job.py
+++ b/client/bin/job.py
@@ -343,13 +343,11 @@
 		return result
 
 
-	def new_container(self, mbytes=None, cpus=None, root=None, name=None):
+	def new_container(self, mbytes=None, cpus=None, root='', name=None):
 		if not grep('cpuset', '/proc/filesystems'):
 			print "Containers not enabled by latest reboot"
 			return  # containers weren't enabled in this kernel boot
 		pid = os.getpid()
-		if root is None:
-			root = 'sys'
 		if not name:
 			name = 'test%d' % pid  # make arbitrary unique name
 		self.container = cpuset.cpuset(name, job_size=mbytes,