feat(frontends/lean/builtin_cmds): print metas for patterns
feat(frontends/lean/builtin_cmds): print metas for patterns

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