Fix missing class name in markup. Found by Tanky Woo on docs@.

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index 0dc2ab444d98debdd5498eb34832c5ff18969f04..a1d58c0b8e7e8a156c66a560b3a0e1c220d082e7 100644 (file)
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -1666,7 +1666,7 @@ Argument groups
 Mutual exclusion
 ^^^^^^^^^^^^^^^^
 
-.. method:: add_mutually_exclusive_group(required=False)
+.. method:: ArgumentParser.add_mutually_exclusive_group(required=False)
 
    Create a mutually exclusive group. :mod:`argparse` will make sure that only
    one of the arguments in the mutually exclusive group was present on the