Replace depricated iscsi_helper with target_helper

Cinder change I5231f8fe3399deb9c57e6efb121d0d008dc9c7f4
replaces iscsi_helper with more general one.



Change-Id: I49fe0365b170e5a5b0449d80003bcf970e4c191d
diff --git a/lib/cinder b/lib/cinder
index 75486ad..a1d6871 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -101,7 +101,7 @@
 if is_fedora; then
     CINDER_ISCSI_HELPER=${CINDER_ISCSI_HELPER:-lioadm}
     if [[ ${CINDER_ISCSI_HELPER} != "lioadm" ]]; then
-        die "lioadm is the only valid Cinder iscsi_helper config on this platform"
+        die "lioadm is the only valid Cinder target_helper config on this platform"
     fi
 else
     CINDER_ISCSI_HELPER=${CINDER_ISCSI_HELPER:-tgtadm}
@@ -230,7 +230,7 @@
     iniset $CINDER_CONF DEFAULT auth_strategy keystone
     iniset $CINDER_CONF DEFAULT debug $ENABLE_DEBUG_LOG_LEVEL
 
-    iniset $CINDER_CONF DEFAULT iscsi_helper "$CINDER_ISCSI_HELPER"
+    iniset $CINDER_CONF DEFAULT target_helper "$CINDER_ISCSI_HELPER"
     iniset $CINDER_CONF database connection `database_connection_url cinder`
     iniset $CINDER_CONF DEFAULT api_paste_config $CINDER_API_PASTE_INI
     iniset $CINDER_CONF DEFAULT rootwrap_config "$CINDER_CONF_DIR/rootwrap.conf"