diff --git a/src/backend/commands/sequence.c b/src/backend/commands/sequence.c
index 8b6c34a..aff2c1a 100644
--- a/src/backend/commands/sequence.c
+++ b/src/backend/commands/sequence.c
@@ -1912,7 +1912,7 @@ pg_sequence_state(PG_FUNCTION_ARGS)
 	TupleDesc	tupdesc;
 	HeapTuple	tuple;
 	Datum		values[4];
-	bool		nulls[4] = {false, false, false, false};
+	bool		nulls[4] = {0};
 
 	if (get_call_result_type(fcinfo, NULL, &tupdesc) != TYPEFUNC_COMPOSITE)
 		elog(ERROR, "return type must be a row type");
@@ -1929,8 +1929,8 @@ pg_sequence_state(PG_FUNCTION_ARGS)
 
 	seq = read_seq_tuple(seqrel, &buf, &seqtuple);
 	page = BufferGetPage(buf);
-	lsn = PageGetLSN(page);
 
+	lsn = PageGetLSN(page);
 	last_value = seq->last_value;
 	log_cnt = seq->log_cnt;
 	is_called = seq->is_called;
@@ -1944,7 +1944,7 @@ pg_sequence_state(PG_FUNCTION_ARGS)
 	/* The value most recently returned by nextval in the current session */
 	values[1] = Int64GetDatum(last_value);
 
-	/* How many fetches remain before a new WAL record has to be written */
+	/* How many fetches remain before a new WAL record must be written */
 	values[2] = Int64GetDatum(log_cnt);
 
 	/* Indicates whether the sequence has been used */