Wordsmith pgstat_relation.c header comment

From fbcc86b858894964a775695a84d09fe7501b78e4 Mon Sep 17 00:00:00 2001
From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Date: Tue, 30 Sep 2025 08:37:10 +0000
Subject: [PATCH v1] Wordsmith pgstat_relation.c header comment

The comment was mentioning "function relation" which does not look appropriate
and probably a typo or copy/paste error in 13619598f108.

Use "relation statistics" instead which is more consistent with other
pgstat_*.c files header comments.
---
 src/backend/utils/activity/pgstat_relation.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 100.0% src/backend/utils/activity/

diff --git a/src/backend/utils/activity/pgstat_relation.c b/src/backend/utils/activity/pgstat_relation.c
index 69df741cbf6..b5e3903a290 100644
--- a/src/backend/utils/activity/pgstat_relation.c
+++ b/src/backend/utils/activity/pgstat_relation.c
@@ -3,7 +3,7 @@
  * pgstat_relation.c
  *	  Implementation of relation statistics.
  *
- * This file contains the implementation of function relation. It is kept
+ * This file contains the implementation of relation statistics. It is kept
  * separate from pgstat.c to enforce the line between the statistics access /
  * storage implementation and the details about individual types of
  * statistics.
-- 
2.34.1