Clarified comment.

--HG--
extra : convert_revision : svn%3Afdd8eb12-d10e-0410-9acb-85c331704f74/trunk%403240

examples/sockets_ex_2.cpp

@@ -75,8 +75,8 @@ int main()
         // In any case, this function is provided to allow you to perform a graceful 
         // close if you so choose.  
         // 
-        // Also note that the timeout can be changed by suppling an optional second 
-        // argument to this function.
+        // Also note that the timeout can be changed by suppling an optional argument 
+        // to this function.
         close_gracefully(con);
     }
     catch (exception& e)