The Pux syntax is deprecated because it contains mixed case qualifiers on an x rule.
Capital case qualifiers indicate that scrubbing of certain dangerous environment variables should be done. While lower case qualifiers indicate that the environment should be passed unchanged. In the case of Pux you have both which is a conflict and confusing. Please use PUx - for cases where you want the environment to be scrubbed and pux - for cases where you do not want the environment to be scrubbed. While the parser currently supports the old style syntax it should be outputting a warning about deprecated syntax. The wiki obviously needs to be updated to document this change but the man page has been updated, it would be nice if there was a note about Pux/pUx being deprecated. The profile development tools have been patched and no longer support the old format, though it would be nice if the could output a warning and perform the conversion.
