[2252] use 127.0.0.1:47809 as address and port of the primary server in lettuce

127.0.0.1:47807 seems to be used by another application in Mac OS X.
47808 is currently registered by IANA. As a result 47809 is here chose as a
new number. For details about the reason, please see a note:
tests/lettuce/configurations/DO_NOT_USE_127.0.0.1:47807.

tests/lettuce/configurations/xfrin/retransfer_master_v4.conf.orig

@@ -11,7 +11,7 @@
         "database_file": "data/example.org.sqlite3",
         "listen_on": [ {
             "address": "127.0.0.1",
-            "port": 47807
+            "port": 47809
         } ]
     },
     "data_sources": {

tests/lettuce/configurations/xfrin/retransfer_slave_notify_v4.conf

@@ -28,7 +28,7 @@
         "zones": [ {
             "name": "example.org",
             "master_addr": "127.0.0.1",
-            "master_port": 47807
+            "master_port": 47809
         } ]
     },
     "Zonemgr": {