interface/cpp.cc: fix style
interface/cpp.cc: fix style

Signed-off-by: Sven Verdoolaege <235c10dd23b819f81cdc9756a251746bc184cab6@gmail.com>

PollyLabs/isl,inducer/isl-mirror,inducer/isl-mirror,nicolasvasilache/isl,Meinersbur/isl,PollyLabs/isl,Meinersbur/isl,inducer/isl-mirror,nicolasvasilache/isl,inducer/isl-mirror,nicolasvasilache/isl,Meinersbur/isl,Meinersbur/isl,nicolasvasilache/isl,PollyLabs/isl,PollyLabs/isl,PollyLabs/isl,inducer/isl-mirror,nicolasvasilache/isl