Data failed to compile:
----------
    Rendering SLS salt.minion failed, render error: unexpected 'end of print statement'; line 17 in template:

---
[...]
  file.managed:
    - user: root
    - group: root
    - mode: 640
    - source:
      - salt://salt/minion/configs/managed_settings.{{ + grains['id'] + }}.conf    <======================
      - salt://salt/minion/configs/managed_settings.{{ + grains['os'] + }}.conf
      - salt://salt/minion/configs/managed_settings.conf

---
Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/salt/state.py", line 1964, in render_state
    rendered_sls=mods
  File "/usr/lib/python2.6/site-packages/salt/template.py", line 69, in compile_template
    ret = render(input_data, env, sls, **render_kwargs)
  File "/usr/lib/python2.6/site-packages/salt/renderers/jinja.py", line 42, in render
    tmp_data.get('data', 'Unknown render error in jinja renderer')
SaltRenderError: unexpected 'end of print statement'; line 17 in template:

---
[...]
  file.managed:
    - user: root
    - group: root
    - mode: 640
    - source:
      - salt://salt/minion/configs/managed_settings.{{ + grains['id'] + }}.conf    <======================
      - salt://salt/minion/configs/managed_settings.{{ + grains['os'] + }}.conf
      - salt://salt/minion/configs/managed_settings.conf

---