-	added -dodesc option to force descending directories
	if the list=file option is used
-	Fixed some problems with the -z option
-	Added the code to use the _FIOAI ioctl on Solaris to speed up
		archiving sparse files > 200 times. You need a hacked
		ufs filesystem in order to use this on Solaris 2.6
		ftp://ftp.fokus.gmd.de/pub/unix/kernel/ufs