Tendermint version: 0.25.0-0c9c3292

Environment:

• OS: Darwin mac 18.2.0 Darwin Kernel Version 18.2.0; macOS 10.14.1 (18B75)
• Install tools: brew

What happened:
I run tendermint show_validator without running tendermint init previously (i.e., no tendermint directories exist on my computer).

tendermint show_validator creates ~/.tendermint directory:

.tendermint$ tree
.
├── config
│   ├── config.toml
│   └── priv_validator.json
└── data

What you expected to happen:
tendermint show_validator should error because there's no priv_validator.json. That's what show_node_id does.

Have you tried the latest version: yes

How to reproduce it: brew install tendermint && tendermint show_validator