Fix typos in code comment and documentation
diff --git a/Doc/library/argparse.rst b/Doc/library/argparse.rst
index c7b8cb7..2ea4b83 100644
--- a/Doc/library/argparse.rst
+++ b/Doc/library/argparse.rst
@@ -878,7 +878,7 @@
   See the nargs_ description for examples.
 
 With the ``'store_const'`` and ``'append_const'`` actions, the ``const``
-keyword argument must be given.  For other actions, is defaults to ``None``.
+keyword argument must be given.  For other actions, it defaults to ``None``.
 
 
 default
diff --git a/Doc/whatsnew/2.4.rst b/Doc/whatsnew/2.4.rst
index 00a996d..5555e7d 100644
--- a/Doc/whatsnew/2.4.rst
+++ b/Doc/whatsnew/2.4.rst
@@ -1481,7 +1481,7 @@
 
 * Python can now be built with additional profiling for the interpreter itself,
   intended as an aid to people developing the Python core.  Providing
-  :option:`----enable-profiling` to the :program:`configure` script will let you
+  :option:`--enable-profiling` to the :program:`configure` script will let you
   profile the interpreter with :program:`gprof`, and providing the
   :option:`--with-tsc` switch enables profiling using the Pentium's Time-Stamp-
   Counter register.  Note that the :option:`--with-tsc` switch is slightly