Bug fix: netlab initial could not configure a single module (fixes #1028)

Root cause analysis and further details in #1028

Author: ipspace

netsim/ansible/initial-config.ansible

@@ -75,14 +75,14 @@
   tags: [ module,test ]
   tasks:
   - set_fact:
-      modlist: "{{ modlist.split(',') if modlist is defined else netlab_module }}"
+      mod_select: "{{ modlist.split(',') if modlist is defined else netlab_module }}"
   - include_tasks: "tasks/deploy-module.yml"
     args:
       apply:
         vars:
           paths: "{{ search_path }}"
         tags: [ always ]
-    loop: "{{ netlab_module|intersect(modlist) }}"
+    loop: "{{ netlab_module|intersect(mod_select) }}"
     loop_control:
       loop_var: config_module