add a dummy cast to the two `sort_by_`... functions to make clang and gcc shut the fuck up about pointer type mismatches.
add a dummy cast to the two `sort_by_`... functions to make clang and gcc
shut the fuck up about pointer type mismatches.

binki/discount,davidfstr/discount,binki/discount,davidfstr/discount,OliverLetterer/discount,gm2bv/discount,binki/discount,davidfstr/discount,gm2bv/discount,OliverLetterer/discount,binki/discount,gm2bv/discount,OliverLetterer/discount,gm2bv/discount,binki/discount,davidfstr/discount