Man pages matching name pivot_scaled_sprite_v_flip_trans in section 3alleg4:

pivot_scaled_sprite_v_flip_trans.3alleg4.en	debian 10 / allegro4-doc
pivot_scaled_sprite_v_flip_trans.3alleg4.en	debian 11 / allegro4-doc
pivot_scaled_sprite_v_flip_trans.3alleg4.en	debian 12 / allegro4-doc