isl_morph.c: fix typo in comment
isl_morph.c: fix typo in comment

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

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