Bug 6258: avoid warnings on undefined exit status, recognize and nicely display a HUP signal (trivial)
Bug 6258: avoid warnings on undefined exit status,
recognize and nicely display a HUP signal (trivial)


git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@890963 13f79535-47bb-0310-9956-ffa450edef68

apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin,apache/spamassassin