[css-fonts-3] i18n-ISSUE-295: U+ in unicode-range descriptor

4.5. Character range: the unicode-range descriptor
http://www.w3.org/TR/2013/WD-css-fonts-3-20130711/#unicode-range-desc



'Each <urange> value is a UNICODE-RANGE token made up of a "U+" or "u+" 
prefix followed by a codepoint range'. The U+ is not always needed 
before every codepoint value (eg. in a range).

Why do we need the U+/u+ ?  It would be easier to just use bare hex 
codepoints, especially for ranges, where U+ is only used at the start 
anyway.


(agreement from other i18n WG members)