Fixes a test ipatests/test_cmdline/test_cli.py:test_cli_fs_encoding()
which sets IPA_CONFDIR and attempts to interpret the resulting error
message. However, if the test is run on an enrolled machine (a
developer's laptop, for example), check_client_configuration() will
succeed because it ignores IPA_CONFDIR and, as result, api.finalize()
will fail later with a stacktrace.
Pass an environment object and test an overridden config file existence
in this case to fail with a proper and expected message.
Reviewed-By: Christian Heimes <cheimes@redhat.com>
2aa24eedf2