isl_coalesce.c: fix typo in comment
isl_coalesce.c: fix typo in comment

Signed-off-by: Sven Verdoolaege <e5350bbed4977f5eb8ae1dc6abd9ae59d21ace75@kotnet.org>

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