fix trailing whitespace

Author: giohappy

geonode/proxy/utils.py

@@ -53,7 +53,7 @@ def unregister_host(self, host):
     def get_proxy_allowed_hosts(self):
         # We register remote hosts from remote URLs at creation time, inside ImporterViewSet.create().
         # If for some reason the creation fails we end up having stale or wrong URLs inside the registry.
-        # We check the last time the registry was updated, and after a certain delta we reinitialize the registry 
+        # We check the last time the registry was updated, and after a certain delta we reinitialize the registry
         # which removes any URLs that are not connected to remote datasets
         if (
             self._last_registry_load is None