For custom commands help exits with Error: EEXIT: 0

[jayree]

Summary

For custom commands like hello:org help exits with error e.g.:
sfdx hello:org -h exits with › Error: EEXIT: 0 › Code: EEXIT
while sfdx hello:org --help or sfdx hello -h is working fine

Steps To Reproduce:

Used https://github.com/forcedotcom/salesforcedx-docker to validate the following steps

1. mkdir plugin
2. cd plugin
3. npm install -g yarn
4. sfdx plugins:generate
5. yarn prepack
6. sfdx plugins:link .
7. sfdx hello:org -h exits with › Error: EEXIT: 0 › Code: EEXIT
8. sfdx hello:org --help exists without error

Expected result

sfdx hello:org -h exits without error

Actual result

sfdx hello:org -h exits with › Error: EEXIT: 0 › Code: EEXIT
while sfdx hello:org --help or sfdx hello -h exits without error

Additional information

sfdx-cli/7.72.0-697e9faee2 darwin-x64 node-v12.18.3