Fix misleading comment.

src/backend/catalog/pg_shdepend.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/pg_shdepend.c,v 1.1 2005/07/07 20:39:57 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/pg_shdepend.c,v 1.2 2005/08/30 01:07:54 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -727,8 +727,9 @@ dropDatabaseDependencies(Oid databaseId)
 /*
  * deleteSharedDependencyRecordsFor
  *
- * Delete all pg_shdepend entries corresponding to a database-local object
- * that's being dropped or modified.
+ * Delete all pg_shdepend entries corresponding to an object that's being
+ * dropped or modified.  The object is assumed to be either a shared object
+ * or local to the current database (the classId tells us which).
  */
 void
 deleteSharedDependencyRecordsFor(Oid classId, Oid objectId)