[doc] Fix erroneous backslashes in signatures and names (GH-23658)
The issue being resolved is shown in the 3.10 docs (if you select docs for older versions you won't see a visual glitch).
The newer sphinx version that produces the 3.10 docs doesn't treat the backslash to escape things in some situations it previously did.
diff --git a/Doc/library/shutil.rst b/Doc/library/shutil.rst
index 3f51227..435787c 100644
--- a/Doc/library/shutil.rst
+++ b/Doc/library/shutil.rst
@@ -218,7 +218,7 @@
copy the file more efficiently. See
:ref:`shutil-platform-dependent-efficient-copy-operations` section.
-.. function:: ignore_patterns(\*patterns)
+.. function:: ignore_patterns(*patterns)
This factory function creates a function that can be used as a callable for
:func:`copytree`\'s *ignore* argument, ignoring files and directories that