xbps_find_orphan_packages: improve doxygen documentation.
xbps_find_orphan_packages: improve doxygen documentation.

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extra : convert_revision : xtraeme%40gmail.com-20100123052934-bq05edsd09x3pgds

ebfe/xbps,ebfe/xbps,datenwolf/xbps,stpx/xbps,datenwolf/xbps,stpx/xbps,datenwolf/xbps,ebfe/xbps,stpx/xbps