New `-timeout` global flag for `influxd-ctl`

[devanbenz]

ETA: 1.12.3

A new -timeout <duration> global flag has been added to influxd-ctl. This allows users to override the default 10-second timeout for all influxd-ctl operations.

Example: influxd-ctl -timeout 30s show-shards

InfluxDB Enterprise 1.12.3+