ZMQ_RCVMORE type changed to int

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

doc/zmq_getsockopt.txt

@@ -51,7 +51,7 @@ Refer to linkzmq:zmq_send[3] and linkzmq:zmq_recv[3] for a detailed description
 of sending/receiving multi-part messages.
 
 [horizontal]
-Option value type:: int64_t
+Option value type:: int
 Option value unit:: boolean
 Default value:: N/A
 Applicable socket types:: all

src/socket_base.cpp

@@ -244,12 +244,12 @@ int zmq::socket_base_t::getsockopt (int option_, void *optval_,
     }
 
     if (option_ == ZMQ_RCVMORE) {
-        if (*optvallen_ < sizeof (int64_t)) {
+        if (*optvallen_ < sizeof (int)) {
             errno = EINVAL;
             return -1;
         }
-        *((int64_t*) optval_) = rcvmore ? 1 : 0;
-        *optvallen_ = sizeof (int64_t);
+        *((int*) optval_) = rcvmore ? 1 : 0;
+        *optvallen_ = sizeof (int);
         return 0;
     }