Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
lpq version (return code: 0)
PDF is ready
no entries
lpq --help (return code: 1)
Usage: lpq [-P dest] [-U username] [-h hostname[:port]] [-l] [+interval]