Investigate flaky test-tls-wrap-timeout on FreeBSD

https://ci.nodejs.org/job/node-test-commit-freebsd/3227/nodes=freebsd10-64/console

not ok 1027 parallel/test-tls-wrap-timeout
# /usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-tls-wrap-timeout.js:32
#       throw new Error('timeout');
#       ^
# 
# Error: timeout
#     at Socket.<anonymous> (/usr/home/iojs/build/workspace/node-test-commit-freebsd/nodes/freebsd10-64/test/parallel/test-tls-wrap-timeout.js:32:13)
#     at Socket.g (events.js:286:16)
#     at emitNone (events.js:86:13)
#     at Socket.emit (events.js:185:7)
#     at Socket._onTimeout (net.js:333:8)
#     at tryOnTimeout (timers.js:224:11)
#     at Timer.listOnTimeout (timers.js:198:5)
  ---
  duration_ms: 0.951