Add docstring to new functions

Author: sharktide

Lib/tkinter/__init__.py

@@ -54,12 +54,14 @@
 _space_re = None
 
 def _get_magic_re():
+    """Internal function."""
     global _magic_re
     if _magic_re is None:
         _magic_re = re.compile(r'([\\{}])')
     return _magic_re
 
 def _get_space_re():
+    """Internal function."""
     global _space_re
     if _space_re is None:
         _space_re = re.compile(r'([\s])', re.ASCII)