There are three different values for the header field. These values are mutually exclusive; that is, the header field MUST be set to exactly one of the three values.
The valid values are: DENY, SAMEORIGIN, ALLOW-FROM.
So my question is: is there any reason to NOT update the doc? I'm happy to do it, I just wanted to verify first that there wasn't some explanation for why it should be left as-is.