docs: words instead of <=

Co-authored-by: Peter Bierma <zintensitydev@gmail.com>

diff --git a/Doc/library/imaplib.rst b/Doc/library/imaplib.rst
index 87f4b4fb9062de98b3d4a68c810ffbb72357efea..936040c47d29d5ebd95b3725dc40e707f39c000f 100644 (file)
--- a/Doc/library/imaplib.rst
+++ b/Doc/library/imaplib.rst
@@ -320,7 +320,7 @@ An :class:`IMAP4` instance has the following methods:
    The *dur* argument sets a maximum duration (in seconds) to keep idling,
    after which iteration will stop.  It defaults to ``None``, meaning no time
    limit.  Callers wishing to avoid inactivity timeouts on servers that impose
-   them should keep this <= 29 minutes.
+   them should keep this at most 29 minutes.
    See the :ref:`warning below <windows-pipe-timeout-warning>` if using
    :class:`IMAP4_stream` on Windows.