revert of 1052c3237715465bfd627f491417c8a0f5e5169b since the second term is 1) undocumented 2) nterm-1 is the default any way and 3) no way to override it via xia2
revert of 1052c3237715465bfd627f491417c8a0f5e5169b since the second term is 1) undocumented 2) nterm-1 is the default any way and 3) no way to override it via xia2

xia2/xia2,xia2/xia2