[rygel] core: Fix compiling with newer vala

[Jens Georg <jensgeorg src gnome org>]

commit 0dcf4bfc083ae2db5f7809c823fab9cdcccee783
Author: Jens Georg <mail jensge org>
Date:   Fri Aug 15 23:15:24 2014 +0200

    core: Fix compiling with newer vala
    
    Signed-off-by: Jens Georg <mail jensge org>

 .../rygel-basic-management-test-nslookup.vala      |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/src/librygel-core/rygel-basic-management-test-nslookup.vala 
b/src/librygel-core/rygel-basic-management-test-nslookup.vala
index aa6edb8..dbb73ec 100644
--- a/src/librygel-core/rygel-basic-management-test-nslookup.vala
+++ b/src/librygel-core/rygel-basic-management-test-nslookup.vala
@@ -114,12 +114,12 @@ internal class Rygel.BasicManagementTestNSLookup : BasicManagementTest {
     private static const uint DEFAULT_INTERVAL_TIMEOUT = 1000;
 
     private struct Result {
-        private ProcessState state;
-        private string name_server_address;
-        private string returned_host_name;
-        private string[] addresses;
-        private ResultStatus status;
-        private AnswerType answer_type;
+        public ProcessState state;
+        public string name_server_address;
+        public string returned_host_name;
+        public string[] addresses;
+        public ResultStatus status;
+        public AnswerType answer_type;
         uint execution_time;
 
         private string get_addresses_csv () {