fixed docstring

Author: Oleg Trygub

labelbox/client.py

@@ -1120,8 +1120,10 @@ def get_data_row_ids_for_global_keys(
             'Status' contains the outcome of this job. It can be one of
             'Success', 'Partial Success', or 'Failure'.
 
-            'Results' contains a list of data row ids successfully fetchced. It may
-            not necessarily contain all data rows requested.
+            'Results' contains a list of the fetched corresponding data row ids in the input order. 
+            For data rows that cannot be fetched due to an error, or data rows that do not exist, 
+            empty string is returned at the position of the respective global_key. 
+            More error information can be found in the 'Errors' section.
 
             'Errors' contains a list of global_keys that could not be fetched, along
             with the failure reason