NEWS entry for resolved bug 328100 XABORT not implemented (VEX r2800).

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13753 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/NEWS b/NEWS
index 01f47d7..028944b 100644
--- a/NEWS
+++ b/NEWS
@@ -29,6 +29,7 @@
 327238  Callgrind Assertion 'passed <= last_bb->cjmp_count' failed
 327837  dwz compressed alternate .debug_info and .debug_str not read correctly
 327916  DW_TAG_typedef may have no name
+328100  XABORT not implemented
 328205  Implement additional Xen hypercalls
 
 Release 3.9.0 (31 October 2013)