9c8a0ca69e
One of the three must always be specified, but they buried in a long list of options in the output of --help. Make them more visible to draw the eye. Also, drop "marked" from the description. It's supposed to mean "configured", but it's a strange way to say that, and also it's generally obvious that the program does what its configuration tells it to, and it's not going to remove all files found on the system.
System and Service Manager
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