add --set option to log-grep-recent so that we can select set=1 messages from nightly runs with reuse=yes; do it in log-grep-recent so that we don't have to grep multiple GB of log files more than necessary (one time through chews enough disk i/o)
add --set option to log-grep-recent so that we can select set=1 messages from nightly runs with reuse=yes; do it in log-grep-recent so that we don't have to grep multiple GB of log files more than necessary (one time through chews enough disk i/o)

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@618539 13f79535-47bb-0310-9956-ffa450edef68

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