test: Update spellchecking test

The output for "tihs" for enchant english dictionary has changed so this patch
makes sure that this test continue working, just checking for the correct word
to appear in the list.

Author: danigm

test/test_spellchecking.py

@@ -51,7 +51,7 @@ def test_spellchecking():
     result = spell.spell_check(text, 'Description({}):')
     assert len(result) == 2
     assert result['tihs'].startswith('Description(en_US): tihs -> ')
-    assert get_suggestions(result['tihs']) == ['hits', 'this', 'ties']
+    assert 'this' in get_suggestions(result['tihs'])
 
     # different language, one typo
     text = 'Příčerně žluťoučký kůň'