[VMS/committed]: Add two comments to include/vms/lbr.h

[Tristan Gingold]

Hi,

adding (hopefully relevant) comments is always an improvements!

Committed on trunk.

Tristan.

include/vms
2012-03-08  Tristan Gingold  <gingold@adacore.com>

	* lbr.h (struct vms_lhd): Add comments.

Index: lbr.h
===================================================================
RCS file: /cvs/src/src/include/vms/lbr.h,v
retrieving revision 1.4
diff -c -r1.4 lbr.h
*** lbr.h	27 May 2010 10:37:23 -0000	1.4
--- lbr.h	8 Mar 2012 14:11:56 -0000
***************
*** 87,93 ****
--- 87,96 ----
    unsigned char nextvbn[4];
  
    /* Free pre-allocated index block.  */
+   /* Number of free blocks.  */
    unsigned char freidxblk[4];
+   /* VBN of a simply linked list of free blocks.  The list is terminated by a
+      nul VBN.  */
    unsigned char freeidx[4];
  
    /* Highest pre-allocated index block and in use.  */