AttributeError exception when using ntpq debug mode

$ ./ntpclients/ntpq -D 5 -p
ntpq: numeric-mode lookup of localhost failed, nodename nor servname provided, or not known
Opening host localhost

sendrequest: opcode=1, associd=0, qdata=
Sending 12 octets.  seq=1
Request packet:
d6 01 00 01 00 00 00 00 00 00 00 00             ............
Fragment collection begins
At Tue Jan 31 03:18:57 2017, select with timeout 5 begins
At Tue Jan 31 03:18:57 2017, select with timeout 5 ends
At Tue Jan 31 03:18:57 2017, socket read begins
Received 16 octets
Recording fragment 1, size = 4 offset = 0,  end = 4, more=False
Fragment collection ends. 4 bytes  in 1 fragments
Response packet:
88 9b 90 64                                     ...d

1 associations total
     remote                                   refid      st t when poll reach   delay   offset  jitter
======================================================================================================

sendrequest: opcode=2, associd=34971, qdata=
Sending 12 octets.  seq=2
Request packet:
d6 02 00 02 00 00 88 9b 00 00 00 00             ............
Fragment collection begins
At Tue Jan 31 03:18:57 2017, select with timeout 5 begins
At Tue Jan 31 03:18:57 2017, select with timeout 5 ends
At Tue Jan 31 03:18:57 2017, socket read begins
Received 480 octets
Recording fragment 1, size = 468 offset = 0,  end = 468, more=True
At Tue Jan 31 03:18:57 2017, select with timeout 3 begins
At Tue Jan 31 03:18:57 2017, select with timeout 3 ends
At Tue Jan 31 03:18:57 2017, socket read begins
Received 104 octets
Recording fragment 2, size = 91 offset = 468,  end = 559, more=False
Fragment collection ends. 559 bytes  in 2 fragments
Response packet:
73 72 63 61 64 72 3d 31 37 2e 32 35 33 2e 32 30 srcadr=17.253.20
2e 31 32 35 2c 20 73 72 63 70 6f 72 74 3d 31 32 .125, srcport=12
33 2c 20 64 73 74 61 64 72 3d 31 39 32 2e 31 36 3, dstadr=192.16
38 2e 30 2e 35 2c 20 64 73 74 70 6f 72 74 3d 31 8.0.5, dstport=1
32 33 2c 0d 0a 6c 65 61 70 3d 30 2c 20 73 74 72 23,..leap=0, str
61 74 75 6d 3d 31 2c 20 70 72 65 63 69 73 69 6f atum=1, precisio
6e 3d 2d 32 32 2c 20 72 6f 6f 74 64 65 6c 61 79 n=-22, rootdelay
3d 30 2e 30 30 30 2c 20 72 6f 6f 74 64 69 73 70 =0.000, rootdisp
3d 31 2e 30 30 37 2c 0d 0a 72 65 66 69 64 3d 47 =1.007,..refid=G
50 53 73 2c 20 72 65 66 74 69 6d 65 3d 30 78 64 PSs, reftime=0xd
63 33 61 63 35 37 34 2e 37 64 32 63 36 61 62 37 c3ac574.7d2c6ab7
2c 20 72 65 63 3d 30 78 64 63 33 61 63 35 37 35 , rec=0xdc3ac575
2e 66 33 66 33 30 36 38 31 2c 0d 0a 72 65 61 63 .f3f30681,..reac
68 3d 30 78 37 2c 20 75 6e 72 65 61 63 68 3d 30 h=0x7, unreach=0
2c 20 68 6d 6f 64 65 3d 33 2c 20 70 6d 6f 64 65 , hmode=3, pmode
3d 34 2c 20 68 70 6f 6c 6c 3d 39 2c 20 70 70 6f =4, hpoll=9, ppo
6c 6c 3d 39 2c 20 68 65 61 64 77 61 79 3d 30 2c ll=9, headway=0,
0d 0a 66 6c 61 73 68 3d 30 78 34 30 30 2c 20 6b ..flash=0x400, k
65 79 69 64 3d 30 2c 20 6f 66 66 73 65 74 3d 2d eyid=0, offset=-
30 2e 36 32 33 2c 20 64 65 6c 61 79 3d 32 33 2e 0.623, delay=23.
36 39 31 2c 20 64 69 73 70 65 72 73 69 6f 6e 3d 691, dispersion=
31 39 33 38 2e 32 36 38 2c 0d 0a 6a 69 74 74 65 1938.268,..jitte
72 3d 30 2e 36 39 32 2c 20 78 6c 65 61 76 65 3d r=0.692, xleave=
30 2e 32 32 32 2c 0d 0a 66 69 6c 74 64 65 6c 61 0.222,..filtdela
79 3d 20 32 39 2e 33 32 20 32 33 2e 36 39 20 32 y= 29.32 23.69 2
39 2e 38 33 20 30 2e 30 30 20 30 2e 30 30 20 30 9.83 0.00 0.00 0
2e 30 30 20 30 2e 30 30 20 30 2e 30 30 2c 0d 0a .00 0.00 0.00,..
66 69 6c 74 6f 66 66 73 65 74 3d 20 2d 30 2e 30 filtoffset= -0.0
34 20 2d 30 2e 36 32 20 30 2e 31 36 20 30 2e 30 4 -0.62 0.16 0.0
30 20 30 2e 30 30 20 30 2e 30 30 20 30 2e 30 30 0 0.00 0.00 0.00
20 30 2e 30 30 2c 0d 0a 66 69 6c 74 64 69 73 70  0.00,..filtdisp
3d 20 30 2e 30 30 20 31 2e 30 32 20 32 2e 30 36 = 0.00 1.02 2.06
20 31 36 30 30 30 2e 30 30 20 31 36 30 30 30 2e  16000.00 16000.
30 30 20 31 36 30 30 30 2e 30 30 20 31 36 30 30 00 16000.00 1600
30 2e 30 30 20 31 36 30 30 30 2e 30 30 0d 0a    0.00 16000.00..
Traceback (most recent call last):
  File "./ntpclients/ntpq", line 1668, in <module>
    interpreter.onecmd(command)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/cmd.py", line 221, in onecmd
    return func(arg)
  File "./ntpclients/ntpq", line 1134, in do_peers
    self.__dopeers(showall=True, mode="peers")
  File "./ntpclients/ntpq", line 335, in __dopeers
    variables, peer.associd))
  File "/usr/local/lib/python2.7/site-packages/ntp/util.py", line 442, in summary
AttributeError: PeerSummary instance has no attribute 'logfp'