S. Nishigaki, and T. Yamamoto. (2015)cite arxiv:1501.07508Comment: 7 pages, 10 figures, presented at the 32nd International Symposium on Lattice Field Theory - Lattice 2014, June 23-28, 2014, Columbia University, New York, NY; (v2) replaces the 3rd row of Table 1 and Figure 3 left that contained errors.