Fix duplicate "is".

diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index bdd946438a7db05eddeed16fb08f598b3f23e2a3..2961429c059f5504de618d8e90cfe3cb91c61dd9 100644 (file)
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -221,7 +221,7 @@ the parser's help message. For example, consider a file named
    parser.add_argument('--foo', help='foo help')
    args = parser.parse_args()
 
-If ``-h`` or ``--help`` is supplied is at the command line, the ArgumentParser
+If ``-h`` or ``--help`` is supplied at the command line, the ArgumentParser
 help will be printed::
 
    $ python myprogram.py --help