Log empty DB + Loading data into two separated messages.

src/replication.c

@@ -780,7 +780,7 @@ void readSyncBulkPayload(aeEventLoop *el, int fd, void *privdata, int mask) {
             replicationAbortSyncTransfer();
             return;
         }
-        redisLog(REDIS_NOTICE, "MASTER <-> SLAVE sync: Loading DB in memory");
+        redisLog(REDIS_NOTICE, "MASTER <-> SLAVE sync: Flushing old data");
         signalFlushedDb(-1);
         emptyDb();
         /* Before loading the DB into memory we need to delete the readable
@@ -788,6 +788,7 @@ void readSyncBulkPayload(aeEventLoop *el, int fd, void *privdata, int mask) {
          * rdbLoad() will call the event loop to process events from time to
          * time for non blocking loading. */
         aeDeleteFileEvent(server.el,server.repl_transfer_s,AE_READABLE);
+        redisLog(REDIS_NOTICE, "MASTER <-> SLAVE sync: Loading DB in memory");
         if (rdbLoad(server.rdb_filename) != REDIS_OK) {
             redisLog(REDIS_WARNING,"Failed trying to load the MASTER synchronization DB from disk");
             replicationAbortSyncTransfer();