fix test/testmulti.m2

Cohomology On Toric Varieties and Local Cohomology With Monomial Supports
David Eisenbud, Mircea Mustata, and Mike Stillman, arXiv:math.AG/0001159

D. Cox: The homogeneous coordinate ring of a toric variety, J.Algebraic Geom. 4 (1995), 17-50.

On the Hodge Structure of Projective Hypersurfaces in Toric Varieties
Victor V. Batyrev, David A. Cox
alg-geom/9306011

