Merge pull request stackhpc#28 from jovial/fix-ip-breakage

ip on RedHat based distros is at /usr/sbin/ip

Author: jovial

ansible/vars/RedHat.yml

@@ -1,4 +1,4 @@
 ---
 
 # path to `ip` from the `iproute2` package
-tenks_ip_path: /usr/bin/ip
+tenks_ip_path: /usr/sbin/ip