Added missing key

validation/validate-mmcif-file.py

@@ -490,7 +490,7 @@ class _CifCheck:
 
     def __init__(self, dict_sdb, json_out_file=None, verbose=False):
         self._version = None
-        self.check_results = {"errors": [], "diagnosis": []}
+        self.check_results = {"errors": [], "diagnosis": [], "cifcheck-errors": []}
         self.dict_sdb = os.path.abspath(dict_sdb)
         self.json_out_file = json_out_file
         self.verbose = verbose