Add artificial delay in DTMD

Author: knizhnik

contrib/multimaster/dtmd/src/server.c

@@ -171,7 +171,12 @@ static bool stream_flush(stream_t stream) {
 		/* nothing to do */
 		return true;
 	}
-
+    {
+        struct timespec ts;
+        ts.tv_sec = 0;
+        ts.tv_nsec = 10000; /* 10usec */
+        nanosleep(&ts, NULL);
+    }
 	char *cursor = stream->output.data;
 	while (tosend > 0) {
 		/* repeat sending until we send everything */