Use sizeof(struct file *) consistently for memcpy()'ing fd_ofiles.
Use sizeof(struct file *) consistently for memcpy()'ing fd_ofiles.

Pointed out by Jean-Philippe Ouellet.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars