* Use ::isSupported() instead of checking for a specific function manually
* Remove mention of the XMPGetInfo hook, which was removed in 4feb2ac7f2224d
Depends-On: Ic9044bf3260d1a474a6c74844949602441ffc865
Change-Id: I4333d427a2039aaffb897a1f41504b74d60c3c8b
PDF metadata querying was done with pdfinfo's "-meta" and "-l" options
at the same time, which was supported in poppler 0.26 but not in
poppler 0.48.
Upstream change: https://bugs.freedesktop.org/show_bug.cgi?id=96801
Local change is to run the two as separate commands, then send the
output together into the existing processing. Should work with older
poppler-utils on Jessie as well as current one on Stretch.
Bug: T117839
Bug: T193200
Change-Id: Ib4ee9cf12ac04304c576087727eff5dc521ae751
