Fix typo

Change-Id: I5ce7f422fc6d26eb451ba43fe7bc6f8a540e7d8a
Reviewed-on: https://gerrit.libreoffice.org/73131
Tested-by: Jenkins
Reviewed-by: Jens Carl <j.carl43@gmx.de>

filter/source/graphicfilter/idxf/dxfvec.hxx

@@ -128,7 +128,7 @@ public:
 
     bool TransCircleToEllipse(double fRadius, double & rEx, double & rEy) const;
         // Attempt to transform a circle (in xy plane) so that it results
-        // in an aligned ellipse. If the does not work because a ellipse of
+        // in an aligned ellipse. If the does not work because an ellipse of
         // arbitrary position would be created, sal_False is returned.
         // (The center point will not be transformed, use Transform(..))