variables should not include dashes

Former-commit-id: 9f9ec3b7

roles/sysctl_network/tasks/main.yml

@@ -5,7 +5,7 @@
     dest: '/etc/sysctl.d'
   become: true
   become_user: root
-  register: sysctl-network-conf
+  register: sysctl_network_conf
 
 #The sysctl module manages entries in sysctl.conf and setting "reload :yes" performs a /sbin/sysctl -p if the sysctl file is updated. In addition this module requires a name for a specific sysctl variable in order to work.
 #In this case we need to update the network configuration and making no change to the sysctl.conf file hence the module is not applicable. I am replacing it with a shell module instead.
@@ -13,4 +13,4 @@
   shell: sysctl -p
   become: true
   become_user: root
-  when: sysctl-network-conf.changed
+  when: sysctl_network_conf.changed