I've read on HN (don't remember exactly) a story about a military service person, who automated his data entry job and told his commanding officer, who scolded

I've read on HN (don't remember exactly) a story about a military service person, who automated his data entry job and told his commanding officer, who scolded him and told him to do what he was supposed to do and "not to be clever". Maybe someone recalls the article I'm talking about?