Clean up shebangs for various files.

- Remove shebangs from:
  - ini files
  - unit tests
  - module_utils
  - plugins
  - module_docs_fragments
  - non-executable Makefiles
- Change non-modules from '/usr/bin/python' to '/usr/bin/env python'.
- Change '/bin/env' to '/usr/bin/env'.

Also removed main functions from unit tests (since they no longer
have a shebang) and fixed a python 3 compatibility issue with
update_bundled.py so it does not need to specify a python 2 shebang.

A script was added to check for unexpected shebangs in files.
This script is run during CI on Shippable.

1 files changed, 1 insertions, 1 deletions

diff --git a/hacking/yamlcheck.py b/hacking/yamlcheck.py
index c66d70db13..68d796cb1a 100755
--- a/hacking/yamlcheck.py
+++ b/hacking/yamlcheck.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 # long version of this one liner: python -c 'import yaml,sys;yaml.safe_load(sys.stdin)' < yamltest.txt
 import yaml
 import sys