Simplify: removed double string constants, use str_printf()
Simplify: removed double string constants, use str_printf()

zxlooong/libaacs,rraptorr/libaacs,zxlooong/libaacs,ShiftMediaProject/libaacs,mwgoldsmith/aacs,ShiftMediaProject/libaacs,rraptorr/libaacs,mwgoldsmith/aacs