Correct reftest filename to match naming convention

layout/reftests/svg/objectBoundingBox-and-pattern-01-ref.svg

@@ -0,0 +1,12 @@
+<!--
+     Any copyright is dedicated to the Public Domain.
+     http://creativecommons.org/licenses/publicdomain/
+-->
+<svg xmlns="http://www.w3.org/2000/svg">
+
+    <title>Reference for elements referencing an objectBoundingBox pattern</title>
+
+    <!-- From https://bugzilla.mozilla.org/show_bug.cgi?id=338596 -->
+
+    <rect x="20" y="20" width="200" height="200" fill="lime"/>
+</svg>

layout/reftests/svg/reftest.list

@@ -33,9 +33,9 @@ fails == inline-in-xul-basic-01.xul pass.svg
 == linearGradient-basic-01.svg pass.svg
 == linearGradient-basic-02.svg pass.svg
 == nested-viewBox-01.svg pass.svg
-== objectBoundingBox-and-pattern-01a.svg objectBoundingBox-and-pattern-ref-01.svg
-== objectBoundingBox-and-pattern-01b.svg objectBoundingBox-and-pattern-ref-01.svg
-== objectBoundingBox-and-pattern-01c.svg objectBoundingBox-and-pattern-ref-01.svg
+== objectBoundingBox-and-pattern-01a.svg objectBoundingBox-and-pattern-01-ref.svg
+== objectBoundingBox-and-pattern-01b.svg objectBoundingBox-and-pattern-01-ref.svg
+== objectBoundingBox-and-pattern-01c.svg objectBoundingBox-and-pattern-01-ref.svg
 fails-if(MOZ_WIDGET_TOOLKIT=="cocoa") == opacity-and-gradient-01.svg pass.svg # bug 379610
 == opacity-and-pattern-01.svg pass.svg
 == pseudo-classes-01.svg pass.svg