The CLI has contradictory message about directoryOrFile being required

[marcinjahn]

The directoryOrFile parameter is required for the command-line interface to work, however, the message in the output says that it might be ommited.

Environments:

• CSharpier Version:
• Running CSharpier via: cli
• Operating System: Fedora 40
• .csharpierrc Settings: defaults
• .editorconfig Settings: default

Steps to reproduce:
Run dotnet csharpier

Expected behavior:

It should print uniform message about parameters being required or not.

Actual behavior:

It prints:

>: dotnet csharpier
directoryOrFile is required when not piping stdin to CSharpier

dotnet-csharpier

Usage:
  dotnet-csharpier [options] [<directoryOrFile>...]

Arguments:
  <directoryOrFile>  One or more paths to a directory containing c# files to format or a c# file to format. If a path is not specified the current directory is used

# the rest doesn't matter....

Specifically, look at:

If a path is not specified the current directory is used

It isn't true. When path is not specified, the message above gets shown.