doc nit

polkadot/xcm/xcm-builder/src/universal_exports.rs

@@ -187,7 +187,7 @@ pub fn forward_id_for(original_id: &XcmHash) -> XcmHash {
 /// end with the `SetTopic` instruction.
 ///
 /// In the case that the message ends with a `SetTopic(T)` (as should be the case if the top-level
-/// router is `EnsureUniqueTopic`), then the forwarding message (i.e. the one carrying the
+/// router is `WithUniqueTopic`), then the forwarding message (i.e. the one carrying the
 /// export instruction *to* the bridge in local consensus) will also end with a `SetTopic` whose
 /// inner is `forward_id_for(T)`. If this is not the case then the onward message will not be given
 /// the `SetTopic` afterword.
@@ -254,7 +254,7 @@ impl<Bridges: ExporterFor, Router: SendXcm, UniversalLocation: Get<InteriorLocat
 /// end with the `SetTopic` instruction.
 ///
 /// In the case that the message ends with a `SetTopic(T)` (as should be the case if the top-level
-/// router is `EnsureUniqueTopic`), then the forwarding message (i.e. the one carrying the
+/// router is `WithUniqueTopic`), then the forwarding message (i.e. the one carrying the
 /// export instruction *to* the bridge in local consensus) will also end with a `SetTopic` whose
 /// inner is `forward_id_for(T)`. If this is not the case then the onward message will not be given
 /// the `SetTopic` afterword.