If the end of the pB list was reached before the end of pA, we failed to
read any remaining files from the pA list. Add an additional loop to ensure
all entries of pA are added to the return list regardless of whether we have
reached the end of pB.
This new loop also eliminates the now-unnecessary check for a null pB, as we
need to ensure we are excluding directories in the resulting output anyway.
Signed-off-by: Dan McGee <dan@archlinux.org>
