The bizarrely emphasized "u"

Chapter 2: Core foundations: building on C# 1: P37, footnote 8

Created: 11/29/2010
Last updated: 11/12/2012
Severity: Typo

For some reason, footnote 8 on page 37 contains this phrase, with this formatting:

but this doesn't affect C# 1's status of being statically typed

Obviously the "u" shouldn't be italicized here.