nova changes for multinode working under -o errexit

There was a stray inicomment on paste outside of a nova-api block. This
fails under -o errexit because the paste.ini doesn't exist.

Move this to inside the correct block.

Change-Id: Iffbdae6716a1c2a8f650b68edd4faf436434eab1
diff --git a/lib/nova b/lib/nova
index 90b1ba4..583a592 100644
--- a/lib/nova
+++ b/lib/nova
@@ -245,10 +245,9 @@
         inicomment $NOVA_API_PASTE_INI filter:authtoken cafile
         inicomment $NOVA_API_PASTE_INI filter:authtoken admin_user
         inicomment $NOVA_API_PASTE_INI filter:authtoken admin_password
+        inicomment $NOVA_API_PASTE_INI filter:authtoken signing_dir
     fi
 
-    inicomment $NOVA_API_PASTE_INI filter:authtoken signing_dir
-
     if is_service_enabled n-cpu; then
         # Force IP forwarding on, just on case
         sudo sysctl -w net.ipv4.ip_forward=1