Fix progress report of REINDEX INDEX

I (Álvaro) broke that in commit 6212276e -- forgot to set the
necessary flag.  Repair.

Author: Amit Langote
Discussion: https://postgr.es/m/CA+HiwqEaM2tV5awKhP1vSbgjQe_uXVU15Oi4sTgwgempwMiT8g@mail.gmail.com

src/backend/commands/indexcmds.c

@@ -2350,7 +2350,8 @@ ReindexIndex(RangeVar *indexRelation, int options, bool concurrent)
 	if (concurrent)
 		ReindexRelationConcurrently(indOid, options);
 	else
-		reindex_index(indOid, false, persistence, options);
+		reindex_index(indOid, false, persistence,
+					  options | REINDEXOPT_REPORT_PROGRESS);
 }
 
 /*