Remove the root_helper=sudo in cinder.conf.sample and
move to the rootwrap_config=/etc/cinder/rootwrap.conf as
the default.
Change-Id: Ib4bacf4d24993cb9506b51523a5ba44fe1f85d18
# be hour, day, month or year (string value)
#volume_usage_audit_period=month
-# Deprecated: command to use for running commands as root
-# (string value)
-#root_helper=sudo
-
# Path to the rootwrap configuration file to use for running
# commands as root (string value)
-#rootwrap_config=<None>
+#rootwrap_config=/etc/cinder/rootwrap.conf
# Whether to log monkey patching (boolean value)
#monkey_patch=false