Fix Issue #6005: Examples in the socket library documentation use sendall,

where relevant, instead send method.

Doc/library/socketserver.rst

@@ -353,7 +353,7 @@ This is the server side::
            print("{} wrote:".format(self.client_address[0]))
            print(self.data)
            # just send back the same data, but upper-cased
-           self.request.send(self.data.upper())
+           self.request.sendall(self.data.upper())
 
    if __name__ == "__main__":
        HOST, PORT = "localhost", 9999
@@ -383,7 +383,7 @@ objects that simplify communication by providing the standard file interface)::
 The difference is that the ``readline()`` call in the second handler will call
 ``recv()`` multiple times until it encounters a newline character, while the
 single ``recv()`` call in the first handler will just return what has been sent
-from the client in one ``send()`` call.
+from the client in one ``sendall()`` call.
 
 
 This is the client side::
@@ -400,7 +400,7 @@ This is the client side::
    try:
        # Connect to server and send data
        sock.connect((HOST, PORT))
-       sock.send(bytes(data + "\n", "utf-8"))
+       sock.sendall(bytes(data + "\n", "utf-8"))
 
        # Receive data from the server and shut down
        received = str(sock.recv(1024), "utf-8")
@@ -498,7 +498,7 @@ An example for the :class:`ThreadingMixIn` class::
            data = str(self.request.recv(1024), 'ascii')
            cur_thread = threading.current_thread()
            response = bytes("{}: {}".format(cur_thread.name, data), 'ascii')
-           self.request.send(response)
+           self.request.sendall(response)
 
    class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):
        pass
@@ -507,7 +507,7 @@ An example for the :class:`ThreadingMixIn` class::
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.connect((ip, port))
        try:
-           sock.send(bytes(message, 'ascii'))
+           sock.sendall(bytes(message, 'ascii'))
            response = str(sock.recv(1024), 'ascii')
            print("Received: {}".format(response))
        finally: