The re-exec of the run_nightly script is not working.

git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1602719 13f79535-47bb-0310-9956-ffa450edef68
promotions validated

git-svn-id: https://svn.apache.org/repos/asf/spamassassin/trunk@1602720 13f79535-47bb-0310-9956-ffa450edef68