style: resolve linting errors

Author: james-garner-canonical

ops/_private/harness.py

@@ -537,7 +537,7 @@ def begin_with_initial_hooks(self) -> None:
             # Note: Juju *does* fire relation events for a given relation in the sorted order of
             # the unit names. It also always fires relation-changed immediately after
             # relation-joined for the same unit.
-            # Juju only fires relation-changed (app) if there is data for the integrated application
+            # Juju only fires relation-changed (app) if there is data for the integrated app
             relation = self._model.get_relation(rel_name, rel_id)
             if self._backend._relation_data_raw[rel_id].get(app_name):
                 app = self._model.get_app(app_name)

ops/charm.py

@@ -563,7 +563,7 @@ class RelationCreatedEvent(RelationEvent):
 class RelationJoinedEvent(RelationEvent):
     """Event triggered when a new unit joins a relation.
 
-    This event is triggered whenever a new unit of an integrated 
+    This event is triggered whenever a new unit of an integrated
     application joins the relation.  The event fires only when that
     remote unit is first observed by the unit. Callback methods bound
     to this event may set any local unit data that can be