fix(emacs/lean-server): set safe value of json-false in lean-server-send-command
fix(emacs/lean-server): set safe value of json-false in lean-server-send-command

avigad/lean,digama0/lean,rlewis1988/lean,leanprover/lean,avigad/lean,avigad/lean,leanprover-community/lean,leanprover/lean,leodemoura/lean,Kha/lean,dselsam/lean,avigad/lean,digama0/lean,dselsam/lean,leanprover-community/lean,johoelzl/lean,rlewis1988/lean,leodemoura/lean,rlewis1988/lean,leanprover-community/lean,leanprover/lean,johoelzl/lean,leodemoura/lean,Kha/lean,fpvandoorn/lean,fpvandoorn/lean,fpvandoorn/lean,rlewis1988/lean,rlewis1988/lean,Kha/lean,fpvandoorn/lean,leanprover/lean,leanprover-community/lean,leodemoura/lean,johoelzl/lean,digama0/lean,johoelzl/lean,dselsam/lean,dselsam/lean,digama0/lean,fpvandoorn/lean,dselsam/lean,leanprover-community/lean,rlewis1988/lean,Kha/lean,dselsam/lean,Kha/lean,johoelzl/lean,avigad/lean,johoelzl/lean,digama0/lean,fpvandoorn/lean,leodemoura/lean,Kha/lean,leodemoura/lean,leanprover-community/lean,avigad/lean,leanprover/lean,leanprover/lean,digama0/lean