Merge commit '70642090960c35dcd6da941c869bdf55d4f3bb00' into release/2.4
* commit '70642090960c35dcd6da941c869bdf55d4f3bb00':
msrle: Use FFABS to determine the frame size in msrle_decode_pal4
Conflicts:
libavcodec/msrledec.c
See: f7e1367f58
Merged-by: Michael Niedermayer <michaelni@gmx.at>