Fix some comments.

Nathan Bossart <nathan@postgresql.org>

Commit: b4cbc106a6ced69a0a13a980e1b4b212bb127458
Author: Nathan Bossart <nathan@postgresql.org>
Date: 2025-12-11T21:13:04Z
Fix some comments.

Like commit 123661427b, these were discovered while reviewing
Aleksander Alekseev's proposed changes to pgindent.

Files