FIXUP [func.wrap.ref.class] Change "this subclause": Fix Overfull.

Author: burblebee

source/utilities.tex

@@ -13520,7 +13520,7 @@
 \pnum
 Within subclause \ref{func.wrap.ref},
 \tcode{\placeholder{call-args}} is an argument pack with elements such that
-\tcode{decltype((\placeholder{call-args}))...} denote
+\tcode{decltype((\placeholder{call-args}\linebreak{}))...} denote
 \tcode{Args\&\&...} respectively.
 
 \rSec4[func.wrap.ref.ctor]{Constructors and assignment operators}