Fix another cdash warning
Fix another cdash warning

Signed-off-by: Leonardo de Moura <7610bae85f2b530654cc716772f1fe653373e892@microsoft.com>

soonhokong/lean-osx,fgdorais/lean,avigad/lean,soonhokong/lean,fpvandoorn/lean,c-cube/lean,c-cube/lean,UlrikBuchholtz/lean,johoelzl/lean,leanprover-community/lean,sp3ctum/lean,dselsam/lean,rlewis1988/lean,javra/lean,levnach/lean,soonhokong/lean-osx,fpvandoorn/lean,javra/lean,fgdorais/lean,avigad/lean,soonhokong/lean-osx,fgdorais/lean,leodemoura/lean,codyroux/lean0.1,eigengrau/lean,leodemoura/lean,dselsam/lean,htzh/lean,johoelzl/lean,soonhokong/lean,codyroux/lean0.1,fpvandoorn/lean,avigad/lean,soonhokong/lean-windows,soonhokong/travis_test,leanprover-community/lean,rlewis1988/lean,digama0/lean,javra/lean,soonhokong/lean,c-cube/lean,fpvandoorn/lean2,avigad/lean,soonhokong/travis_test,eigengrau/lean,Kha/lean,Kha/lean,UlrikBuchholtz/lean,eigengrau/lean,htzh/lean,fpvandoorn/lean2,eigengrau/lean,dselsam/lean,johoelzl/lean,rlewis1988/lean,leanprover/lean,leanprover-community/lean,Kha/lean,leodemoura/lean,soonhokong/lean-windows,codyroux/lean0.1,levnach/lean,avigad/lean,codyroux/lean0.1,fpvandoorn/lean2,fpvandoorn/lean2,javra/lean,fgdorais/lean,soonhokong/lean-osx,htzh/lean,soonhokong/lean,rlewis1988/lean,soonhokong/lean-osx,dselsam/lean,levnach/lean,levnach/lean,rlewis1988/lean,sp3ctum/lean,leanprover-community/lean,Kha/lean,dselsam/lean,UlrikBuchholtz/lean,rlewis1988/lean,soonhokong/travis_test,UlrikBuchholtz/lean,fpvandoorn/lean,fpvandoorn/lean,johoelzl/lean,dselsam/lean,soonhokong/lean,UlrikBuchholtz/lean,sp3ctum/lean,leanprover/lean,johoelzl/lean,leanprover-community/lean,soonhokong/travis_test,leanprover/lean,fpvandoorn/lean2,Kha/lean,javra/lean,leodemoura/lean,levnach/lean,leanprover/lean,digama0/lean,leodemoura/lean,fgdorais/lean,sp3ctum/lean,leanprover/lean,digama0/lean,sp3ctum/lean,digama0/lean,fpvandoorn/lean,leanprover-community/lean,c-cube/lean,johoelzl/lean,c-cube/lean,leanprover/lean,fgdorais/lean,digama0/lean,htzh/lean,soonhokong/lean-windows,eigengrau/lean,digama0/lean,leodemoura/lean,avigad/lean,Kha/lean,htzh/lean,soonhokong/lean-windows,soonhokong/lean-windows