VC5Decompressor::Wavelet::reconstructLowband(): always process odd pixel of last col.
VC5Decompressor::Wavelet::reconstructLowband(): always process odd pixel of last col.

At all callsites, we have already made sure that there is such a pixle
by making sure that the dimension are multiples of two.

LebedevRI/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed,LebedevRI/rawspeed,darktable-org/rawspeed,darktable-org/rawspeed