show_sect_stats() used to show packing bonuses for military,
uncompensated workers, civilians, bars and lcms. The bonus for lcms
was labelled "other", which was okay only as long as all other
commodities receive the same packing bonuses.
Show packing bonus type instead. The actual bonus for each commodity
and packing type is already shown by show item. But change its header
for the NPKG column from "rg" to "no", because packing type NPKG is
shown by show se s as "normal".
