Initial pgindent and pgperltidy run for v14.

Also "make reformat-dat-files".

The only change worthy of note is that pgindent messed up the formatting
of launcher.c's struct LogicalRepWorkerId, which led me to notice that
that struct wasn't used at all anymore, so I just took it out.

src/backend/utils/adt/lockfuncs.c

@@ -636,10 +636,10 @@ pg_isolation_test_session_is_blocked(PG_FUNCTION_ARGS)
 	 * Check if any of these are in the list of interesting PIDs, that being
 	 * the sessions that the isolation tester is running.  We don't use
 	 * "arrayoverlaps" here, because it would lead to cache lookups and one of
-	 * our goals is to run quickly with debug_invalidate_system_caches_always > 0.  We expect
-	 * blocking_pids to be usually empty and otherwise a very small number in
-	 * isolation tester cases, so make that the outer loop of a naive search
-	 * for a match.
+	 * our goals is to run quickly with debug_invalidate_system_caches_always
+	 * > 0.  We expect blocking_pids to be usually empty and otherwise a very
+	 * small number in isolation tester cases, so make that the outer loop of
+	 * a naive search for a match.
 	 */
 	for (i = 0; i < num_blocking_pids; i++)
 		for (j = 0; j < num_interesting_pids; j++)