isl_aff.c: fix whitespace
isl_aff.c: fix whitespace

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

PollyLabs/isl,tobig/isl,UBERTC/isl,BenzoSM/isl,BenzoSM/isl,Meinersbur/isl,inducer/isl-mirror,tobig/isl,BenzoSM/isl,tobig/isl,inducer/isl-mirror,UBERTC/isl,nicolasvasilache/isl,PollyLabs/isl,nicolasvasilache/isl,nicolasvasilache/isl,PollyLabs/isl,nicolasvasilache/isl,BenzoSM/isl,tobig/isl,UBERTC/isl,Meinersbur/isl,inducer/isl-mirror,PollyLabs/isl,Meinersbur/isl,UBERTC/isl,PollyLabs/isl,inducer/isl-mirror,nicolasvasilache/isl,Meinersbur/isl,BenzoSM/isl,inducer/isl-mirror