Documentation typo.

Doc/library/ftplib.rst

@@ -427,7 +427,7 @@ FTP_TLS Objects
 
 .. method:: FTP_TLS.ccc()
 
-   Revert control channel back to plaintex.  This can be useful to take
+   Revert control channel back to plaintext.  This can be useful to take
    advantage of firewalls that know how to handle NAT with non-secure FTP
    without opening fixed ports.
 

Doc/whatsnew/3.3.rst

@@ -267,7 +267,7 @@ ftplib
 
 The :class:`~ftplib.FTP_TLS` class now provides a new
 :func:`~ftplib.FTP_TLS.ccc` function to revert control channel back to
-plaintex.  This can be useful to take advantage of firewalls that know how to
+plaintext.  This can be useful to take advantage of firewalls that know how to
 handle NAT with non-secure FTP without opening fixed ports.
 
 (Contributed by Giampaolo Rodolà in :issue:`12139`)