[Enterprise InfluxDB] Document default config locations for influxd-meta #1071
Description
What products and version are you using?
Will be introduced in influxd-meta 1.3.
The influxd-meta binary, if no configuration is specified, will check the INFLUXDB_META_CONFIG_PATH. If that environment variable is set, the path will be used as the configuration file. If unset, the binary will check the ~/.influxdb and /etc/influxdb folder for an influxdb-meta.conf file. If it finds that file at either of the two locations, the first will be loaded as the configuration file automatically.
This matches a similar behavior that the open source and data node versions of InfluxDB already follow.