tests: fix typo in comment

tests/test_api.py

@@ -2185,7 +2185,7 @@ def test_api_ods_formdata(pub, local_user):
     resp = get_app(pub).get(sign_uri('/api/forms/test/ods', user=local_user))
     assert resp.content_type == 'application/vnd.oasis.opendocument.spreadsheet'
 
-    # check it still gives a ods file when there is more date
+    # check it still gives a ods file when there is more data
     for i in range(300):
         formdata = data_class()
         formdata.data = data