* ubitux/shorthand-cleanup:
lavfi/mptestsrc: switch to an AVOptions-based system.
lavfi/mandelbrot: switch to an AVOptions-based system.
lavfi/life: switch to an AVOptions-based system.
lavfi/cellauto: switch to an AVOptions-based system.
Merged-by: Michael Niedermayer <michaelni@gmx.at>