Fixup for preceding commit: avoid overfull hboxes

Author: jensmaurer

source/utilities.tex

@@ -14226,7 +14226,7 @@
 \item \tcode{fd} is the target object of \tcode{g}\iref{func.def}
   of type \tcode{FD},
   initialized with
-  the \grammarterm{initializer} \tcode{(std::forward<F>(f))}\iref{dcl.init},
+  the \grammarterm{initializer} \tcode{(std::forward<F>(f\brk{}))}\iref{dcl.init},
 \item \tcode{call_args} is an argument pack
   used in a function call expression\iref{expr.call} of \tcode{g}.
 \end{itemize}
@@ -14266,7 +14266,7 @@
 \item \tcode{FD} is the type \tcode{decay_t<F>},
 \item \tcode{fd} is the target object of \tcode{g}\iref{func.def}
   of type \tcode{FD} initialized with
-  the \grammarterm{initializer} \tcode{(std::forward<F>(f))}\iref{dcl.init},
+  the \grammarterm{initializer} \tcode{(std::forward<F>(\brk{}f))}\iref{dcl.init},
 \item \tcode{BoundArgs} is a pack of types
   equivalent to \tcode{\placeholdernc{DECAY_UNWRAP}(Args)...},
 \item \tcode{bound_args} is