"Check if three code points would start an identifier" is incomplete

Hello,

I'm referring to CSS Syntax Module Level 3, Editor’s Draft, 30 April 
2014 (http://dev.w3.org/csswg/css-syntax/).

The check described in section "4.3.10 Check if three code points would 
start an identifier" is incomplete.

When the first code point is neither U+002D HYPHEN-MINUS, nor a
name-start code point, nor U+005C REVERSE SOLIDUS the check should
return false.

Add the following to the end of the section:

anything else
      Return false.