Merge commit 'ba09675f'

* commit 'ba09675f':
  vf_delogo: use the name 's' for the pointer to the private context
  vf_cropdetect: use the name 's' for the pointer to the private context
  vf_crop: cosmetics, break lines

Conflicts:
	libavfilter/vf_delogo.c

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