Update Device Classes value from "WebDigitalprinter" to "WebDigitalPrinter"

I noticed that there is a Device Classes value that was new in 1.6 (and is in 2.0):

    WebDigitalprinter

Note the lower-case "p" in "printer".  Do we want to update that value to have an upper-case "P"?  Since it is an NMTOKEN, we can change at any time.  I assume we would NOT update the 1.6/2.0 Errata for this, but instead simply change the value in the 1.7 and 2.1 specs.