Markup fixes. (optparse.rst probably needs an entire revision pass.)
diff --git a/Doc/library/subprocess.rst b/Doc/library/subprocess.rst
index b147734..1e1f03e 100644
--- a/Doc/library/subprocess.rst
+++ b/Doc/library/subprocess.rst
@@ -138,7 +138,7 @@
.. function:: check_call(*popenargs, **kwargs)
Run command with arguments. Wait for command to complete. If the exit code was
- zero then return, otherwise raise :exc:`CalledProcessError.` The
+ zero then return, otherwise raise :exc:`CalledProcessError`. The
:exc:`CalledProcessError` object will have the return code in the
:attr:`returncode` attribute.