Adds info about pull request #1289

CHANGES

@@ -1,6 +1,8 @@
 DD MMM YYYY - 2.9.2 - To be released
 ------------------------------------
 
+ * Change from using rand() to thread-safe ap_random_pick.
+   [Issue #1289 - Robert Bost]
  * Cosmetics: added comments on odd looking code to prevent future
    scrutiny
    [Issue #1279 - Coty Sutherland]