Real usage of "-p" option of ansible-lint

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Hi,

I read on the documentation that "-p" option is for two differents usages:

• On section Command output, it says that -p means parseable format

Most ansible-lint examples use pep8 as the output format (-p) which is machine parseable.*

• On section Linting playbooks and roles, it says that -p must be used to lint roles or playbooks

You can specify the list of roles or playbooks that you want to lint with the -p argument. For example, to lint examples/playbooks/play.yml and examples/roles/bobbins, use the following command:

There are really 2 usages of -p options ? How does ansible-lint know the good usage ?