some flag defaults show up as [object Object] in help text

[cristiand391]

Summary

some flags define a default value that the help text shows when using --help, but these are being rendered [object Object].
Some examples:

Steps To Reproduce

1. run sf org create scratch -h (or --help), see help text

Expected result

default flag value is rendered correctly

Actual result

[object Object]

System Information

{
  "architecture": "darwin-x64",
  "cliVersion": "@salesforce/cli/2.15.8",
  "nodeVersion": "node-v18.17.0",
  "osVersion": "Darwin 22.6.0",
  "rootPath": "/Users/cdominguez/.nvm/versions/node/v18.17.0/lib/node_modules/@salesforce/cli",
  "shell": "zsh",
  "pluginVersions": [
    "@cristiand391/sf-plugin-api 0.0.2 (user)",
    "@cristiand391/sf-plugin-fzf-cmp 0.0.1 (user)",
    "@oclif/plugin-autocomplete 2.3.10 (core)",
    "@oclif/plugin-commands 3.0.4 (core)",
    "@oclif/plugin-help 6.0.4 (core)",
    "@oclif/plugin-not-found 3.0.2 (core)",
    "@oclif/plugin-plugins 3.9.4 (core)",
    "@oclif/plugin-search 1.0.4 (core)",
    "@oclif/plugin-update 4.1.3 (core)",
    "@oclif/plugin-version 2.0.3 (core)",
    "@oclif/plugin-warn-if-update-available 3.0.2 (core)",
    "@oclif/plugin-which 3.0.6 (core)",
    "@salesforce/cli 2.15.8 (core)",
    "apex 2.3.20 (core)",
    "auth 2.8.23 (core)",
    "data 2.6.1 (core)",
    "deploy-retrieve 1.19.2 (core)",
    "dev 1.2.1 (user)",
    "info 2.6.51 (core)",
    "limits 2.3.41 (core)",
    "login 1.2.39 (core)",
    "marketplace 0.3.1 (core)",
    "org 2.11.5 (core)",
    "schema 2.3.31 (core)",
    "settings 1.4.36 (core)",
    "sobject 0.2.14 (core)",
    "source 2.10.45 (core)",
    "telemetry 2.3.8 (core)",
    "templates 55.5.17 (core)",
    "trust 2.6.22 (core)",
    "user 2.3.39 (core)"
  ]
}

Additional information

[git2gus]

This issue has been linked to a new work item: W-14378871

[cristiand391]

fixed here: oclif/core#844

should be available in sf >=v2.16

[jshackell-sfdc]

This issue is fixed in version 2.16.7 (Nov 8, 2023).