Fix typo

Change-Id: I74f4fbaf39d8afc36a93097afbbcf3763877d8e9
Reviewed-on: https://gerrit.libreoffice.org/73010
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

filter/source/flash/swfwriter.hxx

@@ -260,7 +260,7 @@ public:
         The coordinates must be in twips */
     sal_uInt16 defineShape( const tools::PolyPolygon& rPolyPoly, const FillStyle& rFillStyle );
 
-    /** defines a flash shape from a outlined polypolygon.
+    /** defines a flash shape from an outlined polypolygon.
         The coordinates must be in twips */
     sal_uInt16 defineShape( const tools::PolyPolygon& rPolyPoly, sal_uInt16 nLineWidth, const Color& rLineColor );