[input.output] Change exposition-only format-string to format_string

These exposition-only names were added by LWG Motion-11
P2093R14 ("Formatted output") and need to be updated.

Author: tkoeppe

source/iostreams.tex

@@ -4168,9 +4168,9 @@
 
   // \ref{ostream.formatted.print}, print functions
   template<class... Args>
-    void print(ostream& os, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void print(ostream& os, format_string<Args...> fmt, Args&&... args);
   template<class... Args>
-    void println(ostream& os, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void println(ostream& os, format_string<Args...> fmt, Args&&... args);
 
   void vprint_unicode(ostream& os, string_view fmt, format_args args);
   void vprint_nonunicode(ostream& os, string_view fmt, format_args args);
@@ -4222,14 +4222,14 @@
 namespace std {
   // \ref{print.fun}, print functions
   template<class... Args>
-    void print(@\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void print(format_string<Args...> fmt, Args&&... args);
   template<class... Args>
-    void print(FILE* stream, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void print(FILE* stream, format_string<Args...> fmt, Args&&... args);
 
   template<class... Args>
-    void println(@\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void println(format_string<Args...> fmt, Args&&... args);
   template<class... Args>
-    void println(FILE* stream, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+    void println(FILE* stream, format_string<Args...> fmt, Args&&... args);
 
   void vprint_unicode(string_view fmt, format_args args);
   void vprint_unicode(FILE* stream, string_view fmt, format_args args);
@@ -6808,7 +6808,7 @@
 \indexlibraryglobal{print}%
 \begin{itemdecl}
 template<class... Args>
-  void print(ostream& os, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void print(ostream& os, format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -6827,7 +6827,7 @@
 \indexlibraryglobal{println}%
 \begin{itemdecl}
 template<class... Args>
-  void println(ostream& os, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void println(ostream& os, format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -7700,7 +7700,7 @@
 \indexlibraryglobal{print}%
 \begin{itemdecl}
 template<class... Args>
-  void print(@\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void print(format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -7715,7 +7715,7 @@
 \indexlibraryglobal{print}%
 \begin{itemdecl}
 template<class... Args>
-  void print(FILE* stream, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void print(FILE* stream, format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -7734,7 +7734,7 @@
 \indexlibraryglobal{println}%
 \begin{itemdecl}
 template<class... Args>
-  void println(@\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void println(format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -7749,7 +7749,7 @@
 \indexlibraryglobal{println}%
 \begin{itemdecl}
 template<class... Args>
-  void println(FILE* stream, @\exposid{format-string}@<Args...> fmt, Args&&... args);
+  void println(FILE* stream, format_string<Args...> fmt, Args&&... args);
 \end{itemdecl}
 
 \begin{itemdescr}