Doc: fix -qwindowgeometry and -qwindowtitle option docs

The former was documented twice and the latter was missing the qdoc
formatting.

Change-Id: Id8dfb21a0c2fd26134b5738448971fe2627a12d6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: David Faure <david.faure@kdab.com>

src/gui/kernel/qguiapplication.cpp

@@ -496,14 +496,13 @@ static QWindowGeometrySpecification windowGeometrySpecification;
         \li \c {-qwindowgeometry} \e geometry, specifies window geometry for
             the main window using the X11-syntax. For example:
             \c {-qwindowgeometry 100x100+50+50}
+        \li \c {-qwindowtitle}, sets the title of the first window
         \li \c{-reverse}, sets the application's layout direction to
             Qt::RightToLeft. This option is intended to aid debugging and should
             not be used in production. The default value is automatically detected
             from the user's locale (see also QLocale::textDirection()).
         \li \c{-session} \e session, restores the application from an earlier
             \l{Session Management}{session}.
-        \li  -qwindowgeometry, sets the geometry of the first window
-        \li  -qwindowtitle, sets the title of the first window
     \endlist
 
     The following standard command line options are available for X11: