Fix process failed text

Pull Request resolved: #1945

quick fix to actor_name because it didn't fit the grammar everywhere it appeared.
ghstack-source-id: 324500404
@exported-using-ghexport

Differential Revision: [D87476151](https://our.internmc.facebook.com/intern/diff/D87476151/)

**NOTE FOR REVIEWERS**: This PR has internal Meta-specific changes or comments, please review them on [Phabricator](https://our.internmc.facebook.com/intern/diff/D87476151/)!

Author: zdevito

monarch_hyperactor/src/v1/actor_mesh.rs

@@ -591,7 +591,7 @@ async fn actor_states_monitor<A, F>(
                         // Attribute this to the monitored actor, even if the underlying
                         // cause is a proc_failure. We propagate the cause explicitly.
                         mesh.get(point.rank()).unwrap().actor_id().clone(),
-                        Some(format!("{} was running on a process which", display_name)),
+                        Some(display_name),
                         actor_status,
                         None,
                     ),