fix(tests/lean): typo
fix(tests/lean): typo

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

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