TAKE - xfsdump: make help printing a little smarter

[Barry Naujok]

fprintf returns the number of characters printed, we can use this
for the offsetted lines.
 
 
Signed-off-by: Christoph Hellwig <hch at lst.de>


Date:  Wed Nov 26 11:38:05 EST 2008
Workarea:  chook.melbourne.sgi.com:/home/bnaujok/isms/xcmds-clean
Inspected by:  Christoph Hellwig <hch at lst.de>

The following file(s) were checked into:
  longdrop.melbourne.sgi.com:/isms/xfs-cmds/master-melb


Modid:  master-melb:xfs-cmds:32548a
xfsdump/invutil/invutil.c - 1.19 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-cmds/xfsdump/invutil/invutil.c.diff?r1=text&tr1=1.19&r2=text&tr2=1.18&f=h
xfsdump/common/main.c - 1.34 - changed
http://oss.sgi.com/cgi-bin/cvsweb.cgi/xfs-cmds/xfsdump/common/main.c.diff?r1=text&tr1=1.34&r2=text&tr2=1.33&f=h
	- make help printing a little smarter