Fix flwcons

[pseudocodes]

fix FLWCons for 2 case below

 /10.100.12.2:56765[1](queued=-1,recved=314041,sent=314041,sid=0x1708cc31f4a0001,lop=SETA,est=1582909574451,to=10000,lcxid=0x12916e,lzxid=0xdc000a0c1d,lresp=1583583401593,llat=0,minlat=0,avglat=0,maxlat=214)
 /10.100.23.2:50677[0](queued=0,recved=1,sent=0)

and fix time.Unix setting

est=1582909574451
Established:   time.Unix(est, 0) => Established:   time.Unix(est/1000, (est%1000)*1e6)
should be : 1582909574, 451000000

[coveralls]

Coverage increased (+0.2%) to 79.857% when pulling d7dcbe5 on pseudocodes:fix-flwcons into 2cc03de on samuel:master.

[coveralls]

Coverage increased (+0.2%) to 79.857% when pulling d7dcbe5 on pseudocodes:fix-flwcons into 2cc03de on samuel:master.