fix patch syntax

OBS-URL: https://build.opensuse.org/package/show/Cloud:Tools/cloud-init?expand=0&rev=234

cloud-init-skip-rename.patch

@@ -8,9 +8,9 @@
  import ipaddress
  import logging
  import os
-@@ -698,6 +699,12 @@ def _rename_interfaces(
-     renames, strict_present=True, strict_busy=True, current_info=None
- ):
+@@ -702,6 +703,13 @@ def _rename_interfaces(
+         LOG.debug("no interfaces to rename")
+         return
  
 +    net_devs = glob.glob('/sys/class/net/*')
 +    for dev in net_devs:
@@ -19,6 +19,6 @@
 +            if dev_name in dev_data:
 +                del renames[renames.index(dev_data)]
 +
-     if not len(renames):
-         LOG.debug("no interfaces to rename")
-         return
+     if current_info is None:
+         current_info = _get_current_rename_info()
+