No changes, just removed hard tabs and trailing white space.

This commit is huge but there are no non-white-space changes in it.

Some files containing third-party sources (src/msw/wince/time.cpp,
src/x11/pango*.cpp) were left unchanged.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61724 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/imaggif.cpp

@@ -109,7 +109,7 @@ int wxGIFHandler::DoGetImageCount( wxInputStream& stream )
     wxGIFErrorCode error = decod.LoadGIF(stream);
     if ( (error != wxGIF_OK) && (error != wxGIF_TRUNCATED) )
         return -1;
-    
+
     // NOTE: this function modifies the current stream position but it's ok
     //       (see wxImageHandler::GetImageCount)