basis_reduction_tab.c: keep track of con_offset instead of n_ineq
basis_reduction_tab.c: keep track of con_offset instead of n_ineq

This is a minor cosmetic change.

crossbuild/isl,KangDroidSMProject/ISL,Meinersbur/isl,cfx-next/toolchain_isl-upstream,SaberMod/isl-current,VanirLLVM/toolchain_isl,Distrotech/isl,abduld/isl,BenzoSM/isl,serge-sans-paille/isl,abduld/isl,pierrotdelalune/isl,epowers/isl,BenzoSM/isl,VanirLLVM/toolchain_isl,pierrotdelalune/isl,epowers/isl,jleben/isl,Distrotech/isl,inducer/isl-mirror,cfx-next/toolchain_isl-upstream,Distrotech/isl,abduld/isl,simbuerg/isl,simbuerg/isl,BobSaget-Mod/libisl,abduld/isl,evaautomation/isl,PollyLabs/isl,KangDroidSMProject/ISL,KangDroidSMProject/ISL,KangDroidSMProject/ISL,serge-sans-paille/isl,serge-sans-paille/isl,serge-sans-paille/isl,KangDroidSMProject/ISL,tobig/isl,epowers/isl,crossbuild/isl,BobSaget-Mod/libisl,tobig/isl,crossbuild/isl,simbuerg/isl,Meinersbur/isl,VanirLLVM/toolchain_isl,cfx-next/toolchain_isl-upstream,pierrotdelalune/isl,pierrotdelalune/isl,VanirLLVM/toolchain_isl,BenzoSM/isl,nicolasvasilache/isl,tobig/isl,cfx-next/toolchain_isl-upstream,nicolasvasilache/isl,PollyLabs/isl,tobig/isl,jleben/isl,Meinersbur/isl,BobSaget-Mod/libisl,SaberMod/isl-current,UBERTC/isl,inducer/isl-mirror,inducer/isl-mirror,nicolasvasilache/isl,jleben/isl,inducer/isl-mirror,UBERTC/isl,nicolasvasilache/isl,simbuerg/isl,evaautomation/isl,BenzoSM/isl,evaautomation/isl,SaberMod/isl-current,serge-sans-paille/isl,VanirLLVM/toolchain_isl,Meinersbur/isl,jleben/isl,epowers/isl,jleben/isl,cfx-next/toolchain_isl-upstream,evaautomation/isl,nicolasvasilache/isl,inducer/isl-mirror,crossbuild/isl,PollyLabs/isl,UBERTC/isl,BenzoSM/isl,PollyLabs/isl,epowers/isl,Distrotech/isl,UBERTC/isl,BobSaget-Mod/libisl,simbuerg/isl,SaberMod/isl-current,PollyLabs/isl,BobSaget-Mod/libisl,pierrotdelalune/isl,Distrotech/isl