# Remove the first two fields in a mapfile, which comes from only arg
# or stdin.
# Makes mapfiles more resistant to changes in source; used for testing.


if [ "x$1" = "x" ]
then
	sed -n -e 's/[0-9]* [^ ]* //p'
else
	sed -n -e 's/[0-9]* [^ ]* //p' $1
fi