Issue #8202: Set sys.argv[0] to -m rather than -c while searching for the module to execute. Also updates all the cmd_line_script tests to validate the setting of sys.path[0] and the current working directory
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 3d10c9d..304f7c9 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -95,8 +95,9 @@
file is not available.
If this option is given, the first element of :data:`sys.argv` will be the
- full path to the module file. As with the :option:`-c` option, the current
- directory will be added to the start of :data:`sys.path`.
+ full path to the module file (while the module file is being located, the
+ first element will be set to ``"-m"``). As with the :option:`-c` option,
+ the current directory will be added to the start of :data:`sys.path`.
Many standard library modules contain code that is invoked on their execution
as a script. An example is the :mod:`timeit` module::