Suricata

These lines (here: https://github.com/inliniac/suricata/blob/master/src/runmode-unix-socket.c#L1026):

```
UnixManagerThreadSpawn(1);

unix_socket_mode_is_running = 1;

UnixManagerRegisterCommand("pcap-file", UnixSocketAddPcapFile, pcapcmd, UNIX_CMD_TAKE_ARGS);
    UnixManagerRegisterCommand("pcap-file-number", UnixSocketPcapFilesNumber, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-file-list", UnixSocketPcapFilesList, pcapcmd, 0);
    UnixManagerRegisterCommand("pcap-current", UnixSocketPcapCurrent, pcapcmd, 0);
```

Cause a race if the server starts accepting/dealing with connections before all commands have been registered. A simple fix I have tested is to move the first two lines after the block, like so:

```
UnixManagerRegisterCommand("pcap-file", UnixSocketAddPcapFile, pcapcmd, UNIX_CMD_TAKE_ARGS);
UnixManagerRegisterCommand("pcap-file-number", UnixSocketPcapFilesNumber, pcapcmd, 0);
UnixManagerRegisterCommand("pcap-file-list", UnixSocketPcapFilesList, pcapcmd, 0);
UnixManagerRegisterCommand("pcap-current", UnixSocketPcapCurrent, pcapcmd, 0);

UnixManagerThreadSpawn(1);

unix_socket_mode_is_running = 1;

```