Чтобы добавить к другим ответам, оскорбления оказываются в секции .rodata sudoers.so. Вы можете использовать objcopy, чтобы немного ограничить вывод, хотя по-прежнему будет много ложных срабатываний:
$ objcopy /usr/lib/sudo/sudoers.so /dev/null --dump-section .rodata=/dev/stdout | strings | head
/build/sudo-g3ghsu/sudo-1.8.16/plugins/sudoers/auth/sudo_auth.c
invalid authentication methods
Invalid authentication methods compiled into sudo! You may not mix standalone and non-standalone authentication.
There are no authentication methods compiled into sudo! If you want to turn off authentication, use the --disable-authentication configure option.
Unable to initialize authentication methods.
Just what do you think you're doing Dave?
It can only be attributed to human error.
That's something I cannot allow to happen.
My mind is going. I can feel it.
Sorry about this, I know it's a bit silly.
$