fix indentation error in docstring for readthedocs

Author: mollyheamazon

src/sagemaker/modules/train/model_trainer.py

@@ -781,7 +781,7 @@ def create_input_data_channel(
             ignore_patterns: (Optional[List[str]]) :
                 The ignore patterns to ignore specific files/folders when uploading to S3.
                 If not specified, default to: ['.env', '.git', '__pycache__', '.DS_Store',
-                 '.cache', '.ipynb_checkpoints'].
+                '.cache', '.ipynb_checkpoints'].
         """
         channel = None
         if isinstance(data_source, str):