* that value, it's guaranteed to be safe since it's computed by this
* routine initially and has been enforced since. We can always use the
* slot's general xmin horizon, but the catalog horizon is only usable
- * when we only catalog data is going to be looked at.
+ * when only catalog data is going to be looked at.
*/
if (TransactionIdIsValid(procArray->replication_slot_xmin) &&
TransactionIdPrecedes(procArray->replication_slot_xmin,