Replace cli.ShowCommandHelp with cli.ShowSubcommandHelp to properly show
usage information when fleetctl config get/set are called without
required arguments. Previously displayed confusing "No help topic for
'get'" error, now shows helpful command help matching --help behavior.
Fixes#36702
## Fix: `fleetctl config get/set` now shows helpful usage information
Fixed the issue where running `fleetctl config get` or `fleetctl config
set` without proper arguments would show a confusing error message.
These commands now display helpful usage information, matching the
behavior of `--help`.
### Before the fix
Running `fleetctl config get` without arguments:
```bash
$ fleetctl config get
Error: No help topic for 'get'
exit status 1
```
### After the fix
Now running the same commands shows helpful usage information:
#### `fleetctl config get` (without arguments)
```bash
$ fleetctl config get
NAME:
fleetctl config get - Get a config option
USAGE:
fleetctl config get [options]
OPTIONS:
--config value Path to the fleetctl config file (default: "/home/ben/.fleet/config") [$CONFIG]
--context value Name of fleetctl config context to use (default: "default") [$CONTEXT]
--help, -h show help
```
#### `fleetctl config get invalidkey` (invalid key)
```bash
$ fleetctl config get invalidkey
NAME:
fleetctl config get - Get a config option
USAGE:
fleetctl config get [options]
OPTIONS:
--config value Path to the fleetctl config file (default: "/home/ben/.fleet/config") [$CONFIG]
--context value Name of fleetctl config context to use (default: "default") [$CONTEXT]
--help, -h show help
```
#### `fleetctl config set` (without flags)
```bash
$ fleetctl config set
NAME:
fleetctl config set - Set config options
USAGE:
fleetctl config set [options]
OPTIONS:
--config value Path to the fleetctl config file (default: "/home/ben/.fleet/config") [$CONFIG]
--context value Name of fleetctl config context to use (default: "default") [$CONTEXT]
--address value Address of the Fleet server [$ADDRESS]
--email value Email to use when connecting to the Fleet server [$EMAIL]
--token value Fleet API token [$TOKEN]
--tls-skip-verify Skip TLS certificate validation (default: false) [$INSECURE]
--rootca value Specify RootCA chain used to communicate with Fleet [$ROOTCA]
--url-prefix value Specify URL Prefix to use with Fleet server (copy from server configuration) [$URL_PREFIX]
--custom-header value [ --custom-header value ] Specify a custom header as 'Header:Value' to be set on every request to the Fleet server (can be specified multiple times for multiple headers, note that this replaces any existing custom headers). Note that when using the environment variable to set this option, it must be set like so: 'CUSTOM_HEADER=Header:Value,Header:Value', and the value cannot contain commas. [$CUSTOM_HEADER]
--help, -h show help
```
#### Normal operation still works as expected
```bash
$ fleetctl config get address
default.address => http://test.local
$ fleetctl config get --help
NAME:
fleetctl config get - Get a config option
USAGE:
fleetctl config get [options]
OPTIONS:
--config value Path to the fleetctl config file (default: "/home/ben/.fleet/config") [$CONFIG]
--context value Name of fleetctl config context to use (default: "default") [$CONTEXT]
--help, -h show help
```
**Related issue:** Resolves#36702
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
## Testing
- [X] Added/updated automated tests
- [X] QA'd all new/changed functionality manually
edwardsb
37a2547e79