fix(frontends/lean/elaborator): "show goal" command line option for nested "begin...end" blocks
fix(frontends/lean/elaborator): "show goal" command line option for nested "begin...end" blocks

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