Fix syntax.
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 4ceee84..954df89 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -143,8 +143,7 @@
 an empty string (``""``) and the current directory will be added to the
 start of :data:`sys.path`.
 
-   .. seealso:: 
-      :ref:`tut-invoking`
+.. seealso::  :ref:`tut-invoking`
 
 
 Generic options