Typo in htup.h comment

Fix typo in xl_heaptid comment

Servus
Manfred

--- ../base/src/include/access/htup.h 2002-07-04 18:05:04.000000000 +0200
+++ src/include/access/htup.h 2002-07-05 16:52:44.000000000 +0200
@@ -268,15 +268,15 @@
/*
* When we insert 1st item on new page in INSERT/UPDATE
* we can (and we do) restore entire page in redo
*/
#define XLOG_HEAP_INIT_PAGE 0x80

/*
- * All what we need to find changed tuple (18 bytes)
+ * All what we need to find changed tuple (14 bytes)
*
* NB: on most machines, sizeof(xl_heaptid) will include some trailing pad
* bytes for alignment. We don't want to store the pad space in the XLOG,
* so use SizeOfHeapTid for space calculations. Similar comments apply for
* the other xl_FOO structs.
*/
typedef struct xl_heaptid
{
RelFileNode node;
ItemPointerData tid; /* changed tuple id */
} xl_heaptid;

Servus
Manfred