note how os.utime should be used for emulating touch
diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index dab2934..22b9a79 100644
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -1303,15 +1303,16 @@
.. function:: utime(path, times)
- Set the access and modified times of the file specified by *path*. If *times* is
- ``None``, then the file's access and modified times are set to the current time.
- Otherwise, *times* must be a 2-tuple of numbers, of the form ``(atime, mtime)``
- which is used to set the access and modified times, respectively. Whether a
- directory can be given for *path* depends on whether the operating system
- implements directories as files (for example, Windows does not). Note that the
- exact times you set here may not be returned by a subsequent :func:`stat` call,
- depending on the resolution with which your operating system records access and
- modification times; see :func:`stat`.
+ Set the access and modified times of the file specified by *path*. If *times*
+ is ``None``, then the file's access and modified times are set to the current
+ time. (The effect is similar to running the Unix program :program:`touch` on
+ the path.) Otherwise, *times* must be a 2-tuple of numbers, of the form
+ ``(atime, mtime)`` which is used to set the access and modified times,
+ respectively. Whether a directory can be given for *path* depends on whether
+ the operating system implements directories as files (for example, Windows
+ does not). Note that the exact times you set here may not be returned by a
+ subsequent :func:`stat` call, depending on the resolution with which your
+ operating system records access and modification times; see :func:`stat`.
.. versionchanged:: 2.0
Added support for ``None`` for *times*.