Bug 989276 - Touch CLOBBER to reopen the CLOSED TREE.

CLOBBER

@@ -22,4 +22,4 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.
 
-Preemptive clobber for a vm/Xdr.h change to evade bug 1019955 (should it have otherwise arisen, which is unclear).
+Bug 989276 is the latest to incur the wrath of bug 1019955.