Remove all trailing spaces

No real changes, just clean up sources by removing trailing spaces from
all the non-generated files.

This should hopefully avoid future commits mixing significant changes
with insignificant whitespace ones.

interface/wx/imagtiff.h

@@ -13,12 +13,12 @@
 
 /**
     @class wxTIFFHandler
-    
+
     This is the image handler for the TIFF format.
-    
+
     @library{wxcore}
     @category{gdi}
-    
+
     @see wxImage, wxImageHandler, wxInitAllImageHandlers()
 */
 class wxTIFFHandler : public wxImageHandler
@@ -28,7 +28,7 @@ public:
     Default constructor for wxTIFFHandler
     */
     wxTIFFHandler();
-    
+
     /**
         Retrieve the version information about the TIFF library used by this
         handler.
@@ -36,10 +36,10 @@ public:
         @since 2.9.2
     */
     static wxVersionInfo GetLibraryVersionInfo();
-    
+
     // let the parent class' (wxImageHandler) documentation through for these methods
     virtual bool LoadFile(wxImage *image, wxInputStream& stream, bool verbose=true, int index=-1);
-    
+
 protected:
     virtual bool SaveFile(wxImage *image, wxOutputStream& stream, bool verbose=true);
     virtual int DoGetImageCount(wxInputStream& stream);