Handle semicolons at end of keySplines value

LayoutTests/svg/animations/script-tests/animate-keySplines.js

 description("Testing correct parsing of keySplines.");
 createSVGTestCase();
 
 // Setup test document
 var rect = createSVGElement("rect");
 rect.setAttribute("id", "rect");
 rect.setAttribute("fill", "green");
 rect.setAttribute("x", "0");
 rect.setAttribute("y", "0");
 rect.setAttribute("width", "100");
 rect.setAttribute("height", "100");
 rect.setAttribute("onclick", "executeTest()");
 
 var animate = createSVGElement("animate");
 animate.setAttribute("id", "animation");
 animate.setAttribute("attributeName", "height");
-animate.setAttribute("calcMode", "splines");
-animate.setAttribute("keySplines", "0 ,0  1 , 1  ;   0 0 , 1 ,    1;  .75 , 0 , 0 , .75");
+animate.setAttribute("calcMode", "spline");
+animate.setAttribute("keySplines", "0 ,0  1 , 1  ;   0 0 , 1 ,    1;  .75 , 0 , 0 , .75;");
 animate.setAttribute("values", "200;167;111;0");
 animate.setAttribute("begin", "click");
 animate.setAttribute("dur", "9s");
 rect.appendChild(animate);
 rootSVGElement.appendChild(rect);
 
 // Setup animation test
 function sample1() {
     // Check initial/end conditions
     shouldBeCloseEnough("rect.height.animVal.value", "167");
@@ skipping 24 matching lines @@
         ["animation", 3.0,   sample1],
         ["animation", 6.0,   sample2],
         ["animation", 8.999, sample3],
         ["animation", 9.001, sample4]
     ];
 
     runAnimationTest(expectedValues);
 }
 
 var successfullyParsed = true;