Merge pull request cplusplus#137 from jwakely/nonclass-typo

[class.friend] Hyphenate "nonclass".

Author: jwakely

source/access.tex

@@ -830,7 +830,7 @@
 specified belongs to the innermost enclosing non-class scope, but if it is
 subsequently referenced, its name is not found by name lookup
 until a matching declaration is provided in the innermost enclosing
-nonclass scope.
+non-class scope.
 \enterexample
 
 \begin{codeblock}