Fix typo

Change-Id: I3ba8dc5a2519a85a2da88f1d40832dd2fb6c10a6
Reviewed-on: https://gerrit.libreoffice.org/72144Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
Tested-by: Julien Nabet <serval2412@yahoo.fr>

basegfx/test/B2DPolygonTest.cxx

@@ -81,7 +81,7 @@ public:
 
     void testContainsOnlyHorizontalOrVerticalLines()
     {
-        // First line is horziontal, second is vertical.
+        // First line is horizontal, second is vertical.
         B2DPolygon aPoly;
         aPoly.append(B2DPoint(0, 1));
         aPoly.append(B2DPoint(1, 1));