revised st*.h headers

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56148 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/textdlg.h

@@ -31,6 +31,8 @@ public:
             Parent window.
         @param message
             Message to show on the dialog.
+        @param caption
+            The caption of the dialog.
         @param defaultValue
             The default value, which may be the empty string.
         @param style