Log user requested interrupts.

nread.c

@@ -1042,6 +1042,7 @@ static int testAndInvokeInterrupt(pCommandCBData self, int handle)
       snprintf(buffer, 512, "INTERRUPT %d issued on sock %d",
                iInt, handle);
       WriteToCommandLog("SYS>", buffer);
+      SICSLogWrite(buffer, eInternal);
       if (iInt == eEndServer) {
         TaskStop(pServ->pTasker);
       }