Fix corrupt image file.

Thanks to E. Liddell.

ksvg/test/tiger.svg

@@ -1,4 +1,4 @@
-<svg>
+<svg xmlns="http://www.w3.org/2000/svg">
  <g style="fill: #ffffff; stroke:#000000; stroke-width:0.172">
   <path d="M-122.304 84.285C-122.304 84.285 -122.203 86.179 -123.027 86.16C-123.851 86.141 -140.305 38.066 -160.833 40.309C-160.833 40.309 -143.05 32.956 -122.304 84.285z"/>
  </g>