Documentation: repair some instances of documented functions that did not appear in the index.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9719 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/mac.H

@@ -178,6 +178,9 @@ extern int fl_parse_color(const char* p, uchar& r, uchar& g, uchar& b);
 extern void fl_open_display();
 
 #endif // FL_DOXYGEN
+/** \file
+ Mac OS X-specific symbols.
+ */
 
 /** \defgroup group_macosx Mac OS X-specific symbols
  Mac OS X-specific symbols declared in <FL/x.H> or <FL/gl.h>

src/Fl_Double_Window.cxx

@@ -15,6 +15,9 @@
 //
 //     http://www.fltk.org/str.php
 //
+/** \file
+ Fl_Double_Window implementation.
+ */
 
 #include <config.h>
 #include <FL/Fl.H>