Fix alphabetical order of non-deprecated setsockopt docs.

doc/zmq_setsockopt.txt

@@ -329,6 +329,28 @@ Default value:: 0 (false)
 Applicable socket types:: all, only for connection-oriented transports.
 
 
+ZMQ_INVERT_MATCHING: Invert message filtering
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Reverses the filtering behavior of PUB-SUB sockets, when set to 1.
+
+On 'PUB' and 'XPUB' sockets, this causes messages to be sent to all
+connected sockets 'except' those subscribed to a prefix that matches
+the message. On 'SUB' sockets, this causes only incoming messages that
+do 'not' match any of the socket's subscriptions to be received by the user.
+
+Whenever 'ZMQ_INVERT_MATCHING' is set to 1 on a 'PUB' socket, all 'SUB'
+sockets connecting to it must also have the option set to 1. Failure to
+do so will have the 'SUB' sockets reject everything the 'PUB' socket sends
+them. 'XSUB' sockets do not need to do this because they do not filter
+incoming messages.
+
+[horizontal]
+Option value type:: int
+Option value unit:: 0,1
+Default value:: 0
+Applicable socket types:: ZMQ_PUB, ZMQ_XPUB, ZMQ_SUB
+
+
 ZMQ_IPV6: Enable IPv6 on socket
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Set the IPv6 option for the socket. A value of `1` means IPv6 is
@@ -1020,28 +1042,6 @@ Default value:: 1 (true)
 Applicable socket types:: all, when using TCP transports.
 
 
-ZMQ_INVERT_MATCHING: Invert message filtering
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Reverses the filtering behavior of PUB-SUB sockets, when set to 1.
-
-On 'PUB' and 'XPUB' sockets, this causes messages to be sent to all
-connected sockets 'except' those subscribed to a prefix that matches
-the message. On 'SUB' sockets, this causes only incoming messages that
-do 'not' match any of the socket's subscriptions to be received by the user.
-
-Whenever 'ZMQ_INVERT_MATCHING' is set to 1 on a 'PUB' socket, all 'SUB'
-sockets connecting to it must also have the option set to 1. Failure to
-do so will have the 'SUB' sockets reject everything the 'PUB' socket sends
-them. 'XSUB' sockets do not need to do this because they do not filter
-incoming messages.
-
-[horizontal]
-Option value type:: int
-Option value unit:: 0,1
-Default value:: 0
-Applicable socket types:: ZMQ_PUB, ZMQ_XPUB, ZMQ_SUB
-
-
 RETURN VALUE
 ------------
 The _zmq_setsockopt()_ function shall return zero if successful. Otherwise it