Fix up CHANGES file.
Fix up CHANGES file.

290 was fixed in 1.11, but crept into the 1.12 changes.

ahelsing/geni-ch,MarshallBrinn/geni-ch,tcmitchell/geni-ch,MarshallBrinn/geni-ch,ahelsing/geni-ch,tcmitchell/geni-ch