[network-manager-openvpn] build: link properties test against -ldl

[Thomas Haller <thaller src gnome org>]

commit 1d64542a1decb83cada866e6ee953b1aded5dad2
Author: Thomas Haller <thaller redhat com>
Date:   Sat Jul 2 11:27:57 2016 +0200

    build: link properties test against -ldl

 properties/tests/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/properties/tests/Makefile.am b/properties/tests/Makefile.am
index c3eef5b..c4639ee 100644
--- a/properties/tests/Makefile.am
+++ b/properties/tests/Makefile.am
@@ -27,6 +27,7 @@ test_import_export_LDADD = \
        $(GTK_LIBS) \
        $(LIBNM_LIBS) \
        $(LIBNMA_LIBS) \
+       -ldl \
        $(top_builddir)/properties/libnm-vpn-plugin-openvpn-test.la