[ostream.iterator] Exposition-only style for out-stream and delim

Also change `out_stream` to `out-stream`

Author: frederick-vs-ja

source/iterators.tex

@@ -6768,8 +6768,8 @@
     ostream_iterator& operator++(int);
 
   private:
-    basic_ostream<charT,traits>* out_stream;            // \expos
-    const charT* delim;                                 // \expos
+    basic_ostream<charT,traits>* @\exposid{out-stream}@;            // \expos
+    const charT* @\exposid{delim}@;                                 // \expos
   };
 }
 \end{codeblock}
@@ -6784,8 +6784,8 @@
 \begin{itemdescr}
 \pnum
 \effects
-Initializes \tcode{out_stream} with \tcode{addressof(s)} and
-\tcode{delim} with \keyword{nullptr}.
+Initializes \exposid{out-stream} with \tcode{addressof(s)} and
+\exposid{delim} with \keyword{nullptr}.
 \end{itemdescr}
 
 
@@ -6797,8 +6797,8 @@
 \begin{itemdescr}
 \pnum
 \effects
-Initializes \tcode{out_stream} with \tcode{addressof(s)} and
-\tcode{delim} with \tcode{delimiter}.
+Initializes \exposid{out-stream} with \tcode{addressof(s)} and
+\exposid{delim} with \tcode{delimiter}.
 \end{itemdescr}
 
 \rSec3[ostream.iterator.ops]{Operations}
@@ -6813,9 +6813,9 @@
 \effects
 As if by:
 \begin{codeblock}
-*out_stream << value;
-if (delim)
-  *out_stream << delim;
+*@\exposid{out-stream}@ << value;
+if (@\exposid{delim}@)
+  *@\exposid{out-stream}@ << @\exposid{delim}@;
 return *this;
 \end{codeblock}
 \end{itemdescr}