# eat the zeroes but keep the tabular look (i.e. replace each leading zero
# with a space). had to do it as cases, since this seems like context-
# sensitive matching, which sed will not do, i think).
- sed -e 's/^000000/ /' -e 's/^00000/ /' -e 's/^0000/ /' \
+ sed -e 's/^000000/ 0/' -e 's/^00000/ /' -e 's/^0000/ /' \
-e 's/^000/ /' -e 's/^00/ /' -e 's/^0/ /'