remove the non-functional -p/--pname argument, replace it with -f/--fname
add -a (use abbreviations) and -L (use logical offsets) to getopt parse list
thanks to wiz for noticing inconsistencies
This check was found to not exist in the linux fdisk-0.1
sources, which are under current linuxppc use. Also,
NetBSD users probably care less about warnings for bugs
in old versions of linux.