Fix typo in mvdistinct.c
Noticed while browsing the code.
@@ -339,7 +339,7 @@ statext_ndistinct_deserialize(bytea *data)
* input routine for type pg_ndistinct
*
* pg_ndistinct is real enough to be a table column, but it has no
- * operations of its own, and disallows input (jus like pg_node_tree).
+ * operations of its own, and disallows input (just like pg_node_tree).
*/
Datum
pg_ndistinct_in(PG_FUNCTION_ARGS)
