Uduntu 16.04 add iproute2 package

Author: UnderGreen

tests/Dockerfile.ubuntu_16_04-builded

@@ -3,5 +3,5 @@ FROM ubuntu:16.04
 ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt update && \
-    apt install --yes python-minimal && \
+    apt install --yes python-minimal iproute2 && \
     rm /lib/systemd/system/[email protected]