barvinok_summate: correct options description

[barvinok.git] / tests / ehrhart / vol2

7 6
   1    4  -80   -1    0   21 
   1    4    0   -1  -20   20 
   1   -1   20    0    0   -1 
   1    0    4    0   -1    0 
   1    0   -4    1    0   -2 
   1    0   -4    0    1    3 
   1    0    0    0    1   -1 
1 4
   1    0    0    1