Add flag for toggling inline comments for linters

Sometimes there are linters that are producing output where
people do not care about it enough to want to see it.

Change-Id: I0d58a3f6a4c51e1419b645a7ce1a81e6adee57d3

roles/tox/defaults/main.yaml

@@ -4,5 +4,6 @@ tox_envlist: venv
 tox_executable: tox
 tox_extra_args: -vv
 tox_install_siblings: true
+tox_inline_comments: true
 
 zuul_work_dir: "{{ zuul.project.src_dir }}"

roles/tox/tasks/main.yaml

@@ -44,6 +44,7 @@
 - name: Look for output
   tox_parse_output:
     tox_output: '{{ tox_output.stdout }}'
+  when: tox_inline_comments
   register: file_comments
   ignore_errors: yes