Sync the HTMLM*Element interfaces with the spec

Source/core/html/HTMLMeterElement.idl

Index: Source/core/html/HTMLMeterElement.idl
diff --git a/Source/core/html/HTMLMeterElement.idl b/Source/core/html/HTMLMeterElement.idl
index 2d69f9b555d128d2b40ca71939759ddf00466460..6da0f70a2f77c285efc16ce6a79e03d26a97c019 100644
--- a/Source/core/html/HTMLMeterElement.idl
+++ b/Source/core/html/HTMLMeterElement.idl
@@ -17,14 +17,14 @@
  * Boston, MA 02110-1301, USA.
  */
 
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/the-button-element.html#htmlmeterelement
+// https://html.spec.whatwg.org/#htmlmeterelement
 
 interface HTMLMeterElement : HTMLElement {
-             attribute double value;
-             attribute double min;
-             attribute double max;
-             attribute double low;
-             attribute double high;
-             attribute double optimum;
+    attribute double value;
+    attribute double min;
+    attribute double max;
+    attribute double low;
+    attribute double high;
+    attribute double optimum;
     readonly attribute NodeList labels;
 };