Fix syntax in packaging docs and update suspicious ignore file.
diff --git a/Doc/packaging/commandref.rst b/Doc/packaging/commandref.rst
index 0d7447d..5fe802f 100644
--- a/Doc/packaging/commandref.rst
+++ b/Doc/packaging/commandref.rst
@@ -57,7 +57,7 @@
 .. cmdoption:: --suite=NAME, -s NAME
 
    Specify the test suite (or module, class, or method) to be run.  The default
-   for this option can be set by in the project's :file:`setup.cfg` file::
+   for this option can be set by in the project's :file:`setup.cfg` file:
 
    .. code-block:: cfg