Add -X to rigctld.1

doc/man1/rigctld.1

@@ -28,6 +28,7 @@ rigctld \- TCP radio control daemon
 .OP \-T IPADDR
 .OP \-t number
 .OP \-C parm=val
+.OP \-X seconds
 .RB [ \-v [ \-Z ]]
 .YS
 .
@@ -283,6 +284,14 @@ Set verbose mode, cumulative (see
 below).
 .
 .TP
+.BR \-X ", " \-\-twiddle = \fIseconds\fP
+Enables timeout when VFO twiddling is detected.  Some functons will be ignored.
+.IP
+Should only be needed when controlling software should be "paused"
+.B -v
+so you can move the VFO.  Continuous movement extends the timeout.
+.
+.TP
 .BR \-Z ", " \-\-debug\-time\-stamps
 Enable time stamps for the debug messages.
 .IP