boolean values in krb5.conf

[Wang Weijun]

I see

static const char *const conf_yes[] = {
    "y", "yes", "true", "t", "1", "on",
    0,
};

static const char *const conf_no[] = {
    "n", "no", "false", "nil", "0", "off",
    0,
};

at src/util/profile/prof_get.c#L337. So the opposite of "t" is "nil" instead of "f". Is there a history here? Why not support "f" being "false"?

Thanks
Max