[svn-r17972] Description:

Bring r17971 from trunk to 1.8 branch:

    Allow the core VFD to properly support opening backing store files through
symbolic links and have the external links in the file be treated in the same
way as for the sec2 driver.

Tested on:
	FreeBSD/32 6.3 (duty) in debug mode
	(h5committested on trunk)

src/H5FDsec2.c

@@ -328,19 +328,18 @@ done:
  *
  *-------------------------------------------------------------------------
  */
-/* ARGSUSED */
 static H5FD_t *
 H5FD_sec2_open(const char *name, unsigned flags, hid_t fapl_id, haddr_t maxaddr)
 {
-    int	o_flags;
-    int		fd=(-1);
-    H5FD_sec2_t	*file=NULL;
+    H5FD_sec2_t	*file = NULL;   /* sec2 VFD info */
+    int	fd = (-1);              /* File descriptor */
+    int	o_flags;                /* Flags for open() call */
 #ifdef _WIN32
     HFILE filehandle;
     struct _BY_HANDLE_FILE_INFORMATION fileinfo;
 #endif
     h5_stat_t	sb;
-    H5FD_t	*ret_value;
+    H5FD_t	*ret_value;     /* Return value */
 
     FUNC_ENTER_NOAPI(H5FD_sec2_open, NULL)