TAKE - Fix up mkfs for lvm volumes

[Eric Sandeen <sandeen@xxxxxxx>]

WHen we mkfs an lvm volume, we fork off an lvdisplay
to get stripe info.  However, lvdisplay requires a full
path to the volume (grumble...) so build that up
if we need it.

Date:  Wed Aug 28 15:03:44 PDT 2002
Workarea:  
stout.americas.sgi.com:/localhome/src/sandeen/2.4.x-xfs/workarea-alwaysclean

The following file(s) were checked into:
  bonnie.engr.sgi.com:/isms/slinx/2.4.x-xfs


Modid:  xfs-cmds:slinx:126302a
cmd/xfsprogs/VERSION - 1.54
        - Bump version

cmd/xfsprogs/doc/CHANGES - 1.78
        - Document changes for LVM lvdisplay

cmd/xfsprogs/libdisk/lvm.c - 1.8
        - Call lvdisplay with the volume name's full path