[allocator.adaptor.members] Use code font for class name.

Author: jwakely

source/utilities.tex

@@ -12694,7 +12694,7 @@
 
 \begin{itemdescr}
 \pnum
-\returns A new scoped_allocator_adaptor object where each allocator \tcode{A} in the
+\returns A new \tcode{scoped_allocator_adaptor} object where each allocator \tcode{A} in the
 adaptor is initialized from the result of calling
 \tcode{allocator_traits<A>::select_on_container_copy_construction()} on the
 corresponding allocator in \tcode{*this}.