[cups.bugs] [LOW] STR #3283: drv files can cause duplicate PPD names from CUPS-Get-PPDs

[twaugh.redhat]

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[STR New]

If a drv file contains more than one Product attribute for a PPD,
'lpinfo -m' will contain duplicates in its output.

I originally reported this as an HPLIP bug but HP claim this is valid PPD
content and that 1.3.9 did not behave in this way:
https://bugs.launchpad.net/hplip/+bug/409928

Link: http://www.cups.org/str.php?L3283
Version: 1.4rc1