Add new line character while writing the resolv conf file

Change-Id: I1a02c0050c5a3f1d89664e4b37676a7dbdcf8a56
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/ethernet_interface.cpp b/ethernet_interface.cpp
index 7230706..db35e01 100644
--- a/ethernet_interface.cpp
+++ b/ethernet_interface.cpp
@@ -422,7 +422,7 @@
         elog<InternalFailure>();
     }
 
-    outStream << "### Generated manually via dbus settings ###";
+    outStream << "### Generated manually via dbus settings ###\n";
     for(const auto& server : dnsList)
     {
         outStream << "nameserver " << server << "\n";