ipatests: ipahealthcheck remove test skipped in pytest run
TestIpaHealthCLI::test_input_file test was skipped due to
bz1866558. Removed the below statement so that the test can
now run as the bug is fixed.
@pytest.mark.xfail(reason='BZ 1866558', strict=False)
Also changed the assert statement to search text in
stdout_text rather than sdterr_text
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>