Log Message:
Updated to version 3.1.1.

Pkgsrc changes:
  - Generic option "online-tests" replaces \ 
"spamassassin-test-net".
  - Removed underscore from package-internal variables (pkglint
    complained).
  - patch-ay disables the SPF plugin to avoid confusing warnings in the log
    files.
  - patch-az fixes http://issues.apache.org/SpamAssassin/show_bug.cgi?id=4826.

Relevant changes since version 3.1.0:
=====================================
 - better validate a number of different configuration options
 - support new Mail::DomainKeys API, which changed incompatibly between
   0.18 and 0.80 without warning
 - more properly handle new Received header formats
 - bug 4788: backport sa-update from 3.2 along with the local_state_dir
   code, etc.
 - bug 4760: strictly validate trusted/internal network configurations
 - bug 4696: consolidated fixes for timeout bugs
 - bug 3710: add timeout to connect so spamc -t works
 - bug 4363: if a message uses CRLF for line endings, use it for header
   rewrites as well
 - bug 4748: add ExpressionEngine and Google redirector patterns
 - bug 3815: add _RELAYCOUNTRY_ tag so that the RelayCountry plugin can
   put in the list of countries relayed through
 - bug 4090: x86_64 platforms (linux specifically) have an issue compiling
   libspamc.so causing RPM build failures
 - bug 4791: fix issue where perl would throw a UTF-8 warning for certain
   messages
 - bugs 4606, 4609: Adjust MIME parsing limits
 - bug 4780: fix IP_ADDRESS & LOCALHOST regexes to correctly parse IPv6
   addresses
 - bug 4728: DUL rules should only use the last external IP, not all but
   the first of the external IPs
 - bug 4700: certain privileged configuration settings can inject code,
   due to a bad fix for bug 3846.  Back that out