bug 5140: fix parsing of DK tags, tags are case-sensitive, and whitespace may appear before and after tag name and value.  let DK_POLICY_TESTING be true if t=y appears in a public key, even when policy record is not fetched.  thanks to Mark Martinec <Mark.Martinec /at/ ijs.si>
bug 5140: fix parsing of DK tags, tags are case-sensitive, and whitespace may appear before and after tag name and value.  let DK_POLICY_TESTING be true if t=y appears in a public key, even when policy record is not fetched.  thanks to Mark Martinec <Mark.Martinec /at/ ijs.si>

git-svn-id: e9fe9b84e32fc5e57b7d09c40cd78b14ea28ed71@470939 13f79535-47bb-0310-9956-ffa450edef68

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