[plugin.checks.foo ] is valid toml now
[plugin.checks.foo ] is valid toml now

https://github.com/BurntSushi/toml/commit/18a79db433ce27022230837d2a399c60123d1b64

mackerelio/mackerel-agent,stanaka/mackerel-agent,stanaka/mackerel-agent,stanaka/mackerel-agent,mackerelio/mackerel-agent,stanaka/mackerel-agent,mackerelio/mackerel-agent