socket documentation fix - rename triple to 3-tuple (python#24722)

Co-authored-by: Hugo van Kemenade <[email protected]>

Doc/library/socket.rst

@@ -979,7 +979,7 @@ The :mod:`socket` module also offers various network-related services:
 .. function:: gethostbyname_ex(hostname)
 
    Translate a host name to IPv4 address format, extended interface. Return a
-   triple ``(hostname, aliaslist, ipaddrlist)`` where *hostname* is the host's
+   3-tuple ``(hostname, aliaslist, ipaddrlist)`` where *hostname* is the host's
    primary host name, *aliaslist* is a (possibly
    empty) list of alternative host names for the same address, and *ipaddrlist* is
    a list of IPv4 addresses for the same interface on the same host (often but not
@@ -1007,7 +1007,7 @@ The :mod:`socket` module also offers various network-related services:
 
 .. function:: gethostbyaddr(ip_address)
 
-   Return a triple ``(hostname, aliaslist, ipaddrlist)`` where *hostname* is the
+   Return a 3-tuple ``(hostname, aliaslist, ipaddrlist)`` where *hostname* is the
    primary host name responding to the given *ip_address*, *aliaslist* is a
    (possibly empty) list of alternative host names for the same address, and
    *ipaddrlist* is a list of IPv4/v6 addresses for the same interface on the same