pacdiff: Compatibility with plocate

pacdiff -l uses locate(1) to search for *.pac{new,orig,save} files:

		locate -0 -e -b \*.pacnew \*.pacorig \*.pacsave '*.pacsave.[0-9]*'

This works with locate command of the mlocate package, but the locate command shipped with the newer and faster plocate package sadly behaves differently when passed multiple patterns: mlocate does an OR of all the patterns, while plocate does an AND, and thus doesn't find anything.

One solution would be to simply invoke locate once for each pattern.

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Affects: pacman-contrib 1.10.4-1