message: clear-output-folder help
diff: @@ -177,6 +177,8 @@ help-content: # type: Help as defined in autorest-core/help.ts
  - key: output-folder
  type: string
  description: "target folder for generated artifacts; default: \"<base folder>/generated\""
  + - key: clear-output-folder
  + description: clear the output folder before writing generated artifacts to disk (use with extreme caution!)
  - key: base-folder
  type: string
  description: "path to resolve relative paths (input/output files/folders) against; default: directory of configuration file, current directory otherwise"
  