changed wxImage::Rescale() to return wxImage& and not void

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5004 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/image.tex

@@ -451,11 +451,13 @@ mimetype to the named file}
 
 \membersection{wxImage::Rescale}\label{wximagerescale}
 
-\func{wxImage}{Rescale}{\param{int}{ width}, \param{int}{ height}}
+\func{wxImage \&}{Rescale}{\param{int}{ width}, \param{int}{ height}}
 
 Changes the size of the image in-place: after a call to this function, the
 image will have the given width and height.
 
+Returns the (modified) image itself.
+
 \wxheading{See also}
 
 \helpref{Scale}{wximagescale}