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/include/access/nbtree.h

@@ -1086,7 +1086,7 @@ typedef struct BTOptions
 {
 	int32		varlena_header_;	/* varlena header (do not touch directly!) */
 	int			fillfactor;		/* page fill factor in percent (0..100) */
-	float8		vacuum_cleanup_index_scale_factor; /* deprecated */
+	float8		vacuum_cleanup_index_scale_factor;	/* deprecated */
 	bool		deduplicate_items;	/* Try to deduplicate items? */
 } BTOptions;