make chronosync a dependency

refs: #2400

Change-Id: I8b488f165a4f9a2c9a7731931be3b6d2e3c43c89
diff --git a/.jenkins.d/10-ndn-cxx.sh b/.jenkins.d/10-ndn-cxx.sh
index 69d337e..0d4239e 100755
--- a/.jenkins.d/10-ndn-cxx.sh
+++ b/.jenkins.d/10-ndn-cxx.sh
@@ -49,6 +49,6 @@
 
 if has Linux $NODE_LABELS; then
     sudo ldconfig
-elif has FreeBSD $NODE_LABELS; then
-    sudo ldconfig -a
+elif has FreeBSD10 $NODE_LABELS; then
+    sudo ldconfig -m
 fi