strange comment in load_elf_binary

I see something strange in the load_elf_binary. /* This is the program interpreter used for * shared libraries - for now assume that this * is an a.out format binary */ This comment is in the load_elf_binary. I don't know why it "assume that this is an a.out format binary". a.out and elf are two different file formats. If I misunderstand something, please let me know. Thanks. - mudongliang