Test.  Should print 'match' eighteen times.
pnmcolormap 256
match
pnmcolormap 128
match
pnmcolormap 64
match
pnmcolormap -meancolor 256
match
pnmcolormap -meancolor 128
match
pnmcolormap -meancolor 64
match
pnmcolormap -meanpixel 256
match
pnmcolormap -meanpixel 128
match
pnmcolormap -meanpixel 64
match
pnmcolormap -spreadluminosity 256
match
pnmcolormap -spreadluminosity 128
match
pnmcolormap -spreadluminosity 64
match
pnmcolormap -splitcolorct 256
match
pnmcolormap -splitcolorct 128
match
pnmcolormap -splitcolorct 64
match
pnmcolormap -splitspread 256
match
pnmcolormap -splitspread 128
match
pnmcolormap -splitspread 64
match