Plugin/HeaderEval: header field names are case-insensitive, (plus a tiny speedup)
Plugin/HeaderEval: header field names are case-insensitive, (plus a tiny speedup)

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@1628419 13f79535-47bb-0310-9956-ffa450edef68

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