Added missing parameter must_exist to get_key_value and modified sys.exit of...

Added missing parameter must_exist to get_key_value and modified sys.exit of same function to properly display the missing key and dictionary

tools/oneclick/base/common_dict_file.py

@@ -332,12 +332,12 @@ class CommonDictFile:
                 key_values.append(None)
         return cm.unlistify(key_values)
 
-    def get_key_value(self, key, the_dict):
+    def get_key_value(self, key, the_dict, must_exist=False):
         """Get the value of a key from a single dict, or None in case the key does not exist, or exit if the key must exist."""
         if key in the_dict:
             key_value = the_dict[key]
         elif must_exist:
-            sys.exit('Error : Key %s does not exist in the dictionary:\n%s.' % (key, fd))
+            sys.exit('Error : Key %s does not exist in the dictionary:\n%s.' % (key, the_dict))
         else:
             key_value = None
         return key_value