No changes whatsoever, just remove trailing whitespace.

There are no real changes in this commit but it removes all trailing white
space from our source files. This avoids problems when applying patches and
making diffs and it would be nice to prevent it from reappearing.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65680 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dataview.h

@@ -125,7 +125,7 @@ public:
     virtual bool ItemsChanged( const wxDataViewItemArray &items );
     virtual bool ValueChanged( const wxDataViewItem &item, unsigned int col ) = 0;
     virtual bool Cleared() = 0;
-    
+
     // some platforms, such as GTK+, may need a two step procedure for ::Reset()
     virtual bool BeforeReset() { return true; }
     virtual bool AfterReset() { return Cleared(); }
@@ -305,7 +305,7 @@ public:
     // helper methods provided by list models only
     virtual unsigned GetRow( const wxDataViewItem &item ) const = 0;
 
-    // returns the number of rows 
+    // returns the number of rows
     virtual unsigned int GetCount() const = 0;
 
     // implement some base class pure virtual directly
@@ -1151,7 +1151,7 @@ public:
 
     wxDataViewItem GetNthChild( const wxDataViewItem& parent, unsigned int pos ) const;
     int GetChildCount( const wxDataViewItem& parent ) const;
-    
+
     void SetItemText( const wxDataViewItem& item, const wxString &text );
     wxString GetItemText( const wxDataViewItem& item ) const;
     void SetItemIcon( const wxDataViewItem& item, const wxIcon &icon );