chore(shell/CMakeLists.txt): put EXECUTABLE_SUFFIX to lean
chore(shell/CMakeLists.txt): put EXECUTABLE_SUFFIX to lean

levnach/lean,Kha/lean,avigad/lean,avigad/lean,leanprover-community/lean,leanprover-community/lean,UlrikBuchholtz/lean,Kha/lean,eigengrau/lean,soonhokong/lean,sp3ctum/lean,soonhokong/lean,fpvandoorn/lean2,sp3ctum/lean,leodemoura/lean,javra/lean,soonhokong/lean-osx,johoelzl/lean,soonhokong/lean-osx,Kha/lean,htzh/lean,eigengrau/lean,avigad/lean,leodemoura/lean,javra/lean,leanprover/lean,leanprover/lean,soonhokong/lean-windows,fpvandoorn/lean2,fpvandoorn/lean,fpvandoorn/lean2,leanprover/lean,soonhokong/lean-windows,UlrikBuchholtz/lean,rlewis1988/lean,levnach/lean,dselsam/lean,fpvandoorn/lean,rlewis1988/lean,fgdorais/lean,htzh/lean,rlewis1988/lean,fgdorais/lean,UlrikBuchholtz/lean,htzh/lean,leodemoura/lean,leodemoura/lean,dselsam/lean,leanprover-community/lean,htzh/lean,leanprover-community/lean,dselsam/lean,leodemoura/lean,leanprover-community/lean,soonhokong/lean-windows,UlrikBuchholtz/lean,eigengrau/lean,javra/lean,javra/lean,fgdorais/lean,rlewis1988/lean,soonhokong/lean-osx,johoelzl/lean,htzh/lean,eigengrau/lean,soonhokong/lean,fpvandoorn/lean,soonhokong/lean-windows,soonhokong/lean-windows,sp3ctum/lean,fpvandoorn/lean,levnach/lean,johoelzl/lean,digama0/lean,avigad/lean,dselsam/lean,fpvandoorn/lean2,digama0/lean,leanprover/lean,avigad/lean,eigengrau/lean,digama0/lean,leodemoura/lean,fpvandoorn/lean,fgdorais/lean,soonhokong/lean,soonhokong/lean-osx,soonhokong/lean,dselsam/lean,javra/lean,fgdorais/lean,c-cube/lean,avigad/lean,levnach/lean,levnach/lean,fgdorais/lean,fpvandoorn/lean2,digama0/lean,c-cube/lean,leanprover/lean,leanprover/lean,Kha/lean,digama0/lean,fpvandoorn/lean,johoelzl/lean,leanprover-community/lean,johoelzl/lean,c-cube/lean,Kha/lean,Kha/lean,soonhokong/lean-osx,dselsam/lean,UlrikBuchholtz/lean,sp3ctum/lean,digama0/lean,c-cube/lean,c-cube/lean,rlewis1988/lean,rlewis1988/lean,sp3ctum/lean,johoelzl/lean