Switch more function arguments docs to new-style.
diff --git a/Doc/library/runpy.rst b/Doc/library/runpy.rst
index 6feb4b1..a5bfb8d 100644
--- a/Doc/library/runpy.rst
+++ b/Doc/library/runpy.rst
@@ -19,7 +19,7 @@
The :mod:`runpy` module provides a single function:
-.. function:: run_module(mod_name[, init_globals] [, run_name][, alter_sys])
+.. function:: run_module(mod_name, init_globals=None, run_name=None, alter_sys=False)
Execute the code of the specified module and return the resulting module globals
dictionary. The module's code is first located using the standard import