libxvid: fix missing end of line character

Error introduced in 5ce7ca68b86856ee8e9d6530dffdadc4eca4f8d1.
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  libxvid: fix missing end of line character

Conflicts:
	libavcodec/libxvid.c

No change as the buggy modification wasnt merged, ffmpeg handles the
case where both lumi and variance masking are set, differently

Merged-by: Michael Niedermayer <michaelni@gmx.at>
swresample/resample: Limit filter length

Related to CID1197063

The limit choosen is arbitrary and much larger than what makes sense.
It avoids the need for checking arithmetic operations with the length for overflow

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swresample/dither: use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
swresample/resample: use av_malloc_array() where appropriate

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>