Adjust gratuitously different error message wording

Author: petere

src/backend/commands/lockcmds.c

@@ -99,7 +99,7 @@ RangeVarCallbackForLockTable(const RangeVar *rv, Oid relid, Oid oldrelid,
 		relkind != RELKIND_VIEW)
 		ereport(ERROR,
 				(errcode(ERRCODE_WRONG_OBJECT_TYPE),
-				 errmsg("\"%s\" is not a table or a view",
+				 errmsg("\"%s\" is not a table or view",
 						rv->relname)));
 
 	/*