Update Ansible header since template_path changed its semantic

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

group_vars/all/vars.yaml

 ---
 
 # Custom header
-dirty: "{% if template_path is defined %}{{ lookup('pipe', 'git diff --quiet -- ' + template_path | quote + ' || echo dirty') }}{% else %}{{ lookup('pipe', 'git diff --quiet || echo dirty') }}{% endif %}"
+dirty: "{% if template_fullpath is defined %}{{ lookup('pipe', 'git diff --quiet -- ' + template_fullpath | quote + ' || echo dirty') }}{% else %}{{ lookup('pipe', 'git diff --quiet || echo dirty') }}{% endif %}"
 ansible_header: |
     +++++++++++++++++++++++++++++++++++++++++++++++++++
 
        Ansible managed, don't modify the file locally.
        See https://gitlab.crans.org/nounous/ansible.
-       {% if template_path is defined %}{% set _, rpath = template_path.split('roles/', 1) %}Commit: {% if dirty %}({{dirty}}) {% endif %}{{ lookup('pipe', 'git log -n 1 --pretty=format:%H -- ' + template_path | quote) }}
+       {% if template_fullpath is defined %}{% set _, rpath = template_fullpath.split('roles/', 1) %}Commit: {% if dirty %}({{dirty}}) {% endif %}{{ lookup('pipe', 'git log -n 1 --pretty=format:%H -- ' + template_fullpath | quote) }}
        {% if dirty %}Run by: {{ ansible_env.SUDO_USER }}
-       {% else %}Author: {{ lookup('pipe', 'git log -n 1 --pretty=format:%an -- ' + template_path | quote) }}
+       {% else %}Author: {{ lookup('pipe', 'git log -n 1 --pretty=format:%an -- ' + template_fullpath | quote) }}
        {% endif %}Template: roles/{{ rpath }}
        {% else %}
        Run by: {{ ansible_env.SUDO_USER }}