Make [print.fun] consistent with other label names.

Author: Benio101

source/iostreams.tex

@@ -4259,7 +4259,7 @@
 \indexheader{print}%
 \begin{codeblock}
 namespace std {
-  // \ref{print.fun}, print functions
+  // \ref{print.func}, print functions
   template<class... Args>
     void print(format_string<Args...> fmt, Args&&... args);
   template<class... Args>
@@ -7692,7 +7692,7 @@
 \end{itemize}
 \end{itemdescr}
 
-\rSec2[print.fun]{Print functions}
+\rSec2[print.func]{Print functions}
 
 \indexlibraryglobal{print}%
 \begin{itemdecl}