Remove ".. warning::" markup that doesnt contain warnings for users, rather todo items.
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 55b1ff3..55fe957 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -360,7 +360,7 @@
    Skip the first line of the source, allowing use of non-Unix forms of
    ``#!cmd``.  This is intended for a DOS specific hack only.
 
-   .. warning:: The line numbers in error messages will be off by one!
+   .. note:: The line numbers in error messages will be off by one.
 
 
 .. cmdoption:: -3