allow gid to be created dynamically

Author: Colin Hoglund

tasks/main.yml

@@ -1,6 +1,6 @@
 ---
 - name: Creating groups
-  group: name="{{item.name}}" gid="{{item.gid}}"
+  group: name="{{item.name}}" gid="{{item.gid | default(omit)}}"
   with_items: "{{groups_to_create}}"
   tags: ['users','groups','configuration']