[3755] Add message to D2 per reveiw comments.

Actually modified a debug message to turn it into an info
message.

src/bin/d2/d2_messages.mes

@@ -431,10 +431,6 @@ This is a debug message issued when reverse DNS updates are disabled and
 DHCP_DDNS receives an update request containing a reverse DNS update.  The
 reverse update will not performed.
 
-% DHCP_DDNS_RUN_ENTER application has entered the event loop
-This is a debug message issued when the DHCP-DDNS application enters
-its run method.
-
 % DHCP_DDNS_RUN_EXIT application is exiting the event loop
 This is a debug message issued when the DHCP-DDNS server exits its
 event lo
@@ -457,6 +453,11 @@ error after receiving a signal.  This is a programmatic error and should be
 reported.  While The application will likely continue to operating, it may be
 unable to respond correctly to signals.
 
+% DHCP_DDNS_STARTED Kea DHCP-DDNS server version %1 started
+This informational message indicates that the DHCP-DDNS server has
+processed all configuration information and is ready to beging processing.
+The version is also printed.
+
 % DHCP_DDNS_STARTING DHCP-DDNS starting, pid: %1, version: %2
 This is an informational message issued when controller for the
 service first starts. Version is also reported.

src/bin/d2/d2_process.cc

@@ -50,7 +50,7 @@ D2Process::init() {
 
 void
 D2Process::run() {
-    LOG_DEBUG(dctl_logger, DBGLVL_START_SHUT, DHCP_DDNS_RUN_ENTER);
+    LOG_INFO(dctl_logger, DHCP_DDNS_STARTED).arg(VERSION);
     // Loop forever until we are allowed to shutdown.
     while (!canShutdown()) {
         try {