Minor wording corrections for object-access hook stuff.

KaiGai Kohei

src/backend/catalog/objectaccess.c

@@ -96,7 +96,7 @@ RunNamespaceSearchHook(Oid objectId, bool ereport_on_violation)
 {
 	ObjectAccessNamespaceSearch	ns_arg;
 
-	/* XXX - should be checked at caller side */
+	/* caller should check, but just in case... */
 	Assert(object_access_hook != NULL);
 
 	memset(&ns_arg, 0, sizeof(ObjectAccessNamespaceSearch));

src/include/catalog/objectaccess.h

@@ -29,7 +29,7 @@
  *
  * OAT_NAMESPACE_SEARCH should be invoked prior to object name lookup under
  * a particular namespace. This event is equivalent to usage permission
- * permission on a schema under the default access control mechanism.
+ * on a schema under the default access control mechanism.
  *
  * Other types may be added in the future.
  */