fix(shell/lean): add missing newline
fix(shell/lean): add missing newline

fpvandoorn/lean,Kha/lean,leanprover/lean,leanprover-community/lean,leanprover/lean,Kha/lean,leodemoura/lean,dselsam/lean,digama0/lean,Kha/lean,avigad/lean,leanprover-community/lean,leanprover-community/lean,leodemoura/lean,leanprover/lean,leanprover/lean,Kha/lean,digama0/lean,avigad/lean,avigad/lean,digama0/lean,leanprover-community/lean,Kha/lean,leodemoura/lean,fpvandoorn/lean,dselsam/lean,leanprover-community/lean,leodemoura/lean,digama0/lean,avigad/lean,digama0/lean,Kha/lean,leanprover-community/lean,fpvandoorn/lean,fpvandoorn/lean,dselsam/lean,avigad/lean,dselsam/lean,dselsam/lean,dselsam/lean,leodemoura/lean,fpvandoorn/lean,leodemoura/lean,avigad/lean,digama0/lean,leanprover/lean,fpvandoorn/lean,leanprover/lean