(exec-missing) begin load: no-such-file: open failed (exec-missing) exec("no-such-file"): -1 (exec-missing) end exec-missing: exit(0) --OR-- (exec-missing) begin (exec-missing) exec("no-such-file"): -1 (exec-missing) end exec-missing: exit(0) --OR-- (exec-missing) begin load: no-such-file: open failed no-such-file: exit(-1) (exec-missing) exec("no-such-file"): -1 (exec-missing) end exec-missing: exit(0)