Default deps list in ansible-galaxy template to an empty list

bin/ansible-galaxy

@@ -68,9 +68,11 @@ galaxy_info:
   {%- for category in categories %}
   #- {{ category.name }}
   {%- endfor %}
-dependencies:
+dependencies: []
   # List your role dependencies here, one per line. Only
   # dependencies available via galaxy should be listed here.
+  # Be sure to remove the '[]' above if you add dependencies
+  # to this list.
   {% for dependency in dependencies %}
   #- {{ dependency }}
   {% endfor %}