misc: rename namespace jami to namespace dhtnet

Change-Id: I904ec8fa1f35dfdcf1aabd5f1ec8d95989ad0696
diff --git a/tests/testString_utils.cpp b/tests/testString_utils.cpp
index b858c77..16e4094 100644
--- a/tests/testString_utils.cpp
+++ b/tests/testString_utils.cpp
@@ -117,6 +117,6 @@
 }
 
 } // namespace test
-} // namespace jami
+} // namespace dhtnet
 
 JAMI_TEST_RUNNER(dhtnet::test::StringUtilsTest::name());