ansible-test fixes

ERROR: plugins/modules/ipaautomountmap.py:118:30: E203: whitespace before ':'

ERROR: Found 1 compile issue(s) on python 2.6 which need to be resolved:
ERROR: plugins/modules/ipasudorule.py:382:63: SyntaxError: {ensure_fqdn(value.lower(), default_domain) for value in host}