Initial pgindent and pgperltidy run for v13.

Includes some manual cleanup of places that pgindent messed up,
most of which weren't per project style anyway.

Notably, it seems some people didn't absorb the style rules of
commit c9d297751, because there were a bunch of new occurrences
of function calls with a newline just after the left paren, all
with faulty expectations about how the rest of the call would get
indented.

src/include/access/tableam.h

@@ -482,9 +482,9 @@ typedef struct TableAmRoutine
 											  double *tups_recently_dead);
 
 	/*
-	 * React to VACUUM command on the relation. The VACUUM can be
-	 * triggered by a user or by autovacuum. The specific actions
-	 * performed by the AM will depend heavily on the individual AM.
+	 * React to VACUUM command on the relation. The VACUUM can be triggered by
+	 * a user or by autovacuum. The specific actions performed by the AM will
+	 * depend heavily on the individual AM.
 	 *
 	 * On entry a transaction is already established, and the relation is
 	 * locked with a ShareUpdateExclusive lock.
@@ -586,7 +586,7 @@ typedef struct TableAmRoutine
 	 * TOAST tables for this AM.  If the relation_needs_toast_table callback
 	 * always returns false, this callback is not required.
 	 */
-	Oid		    (*relation_toast_am) (Relation rel);
+	Oid			(*relation_toast_am) (Relation rel);
 
 	/*
 	 * This callback is invoked when detoasting a value stored in a toast

src/include/access/visibilitymap.h

@@ -45,6 +45,6 @@ extern void visibilitymap_set(Relation rel, BlockNumber heapBlk, Buffer heapBuf,
 extern uint8 visibilitymap_get_status(Relation rel, BlockNumber heapBlk, Buffer *vmbuf);
 extern void visibilitymap_count(Relation rel, BlockNumber *all_visible, BlockNumber *all_frozen);
 extern BlockNumber visibilitymap_prepare_truncate(Relation rel,
-							  BlockNumber nheapblocks);
+												  BlockNumber nheapblocks);
 
 #endif							/* VISIBILITYMAP_H */