Get rid of trailing whitespace.

Commit generated by command:

find -type f ! -path '*.git*' ! -path '*.png' ! -path '*.ico' ! -path \
    '*.ogg' | xargs -I '{}' sed -i '{}' -e 's/\t*$//g' -e 's/ *$//g'

src/client/uiminimap.cpp

@@ -65,7 +65,7 @@ bool UIMinimap::setZoom(int zoom)
     else
         m_scale = 1;
     m_layout->update();
-    
+
     onZoomChange(zoom, oldZoom);
     return true;
 }