discard_file_name
newae(ctx->i_ae, discard_file_name(ctx, arg));
newae(ctx->i_ae, discard_file_name(ctx, arg));
newae(ctx->i_ae, discard_file_name(ctx, NULL));
newae(ctx->i_ae, discard_file_name(ctx, arg));
newae(ctx->i_ae, discard_file_name(ctx, arg));
newae(ctx->i_ae, discard_file_name(ctx, NULL));