test: parallel/test-http-curl-chunk-problem fails frequently on iojs-centos5-64

[bnoordhuis]

This test fails with some regularity on the iojs-centos5-64 buildbot:

=== release test-http-curl-chunk-problem ===
Path: parallel/test-http-curl-chunk-problem
dd command:  dd if=/dev/zero of="/home/iojs/build/workspace/iojs+any-pr+multi/nodes/iojs-centos5-64/test/tmp.0/big" bs=1024 count=10240
Server running at http://localhost:8080
making curl request
events.js:141
      throw er; // Unhandled 'error' event
            ^
Error: write after end
    at ServerResponse.OutgoingMessage.write (_http_outgoing.js:392:15)
    at Socket.<anonymous> (/home/iojs/build/workspace/iojs+any-pr+multi/nodes/iojs-centos5-64/test/parallel/test-http-curl-chunk-problem.js:48:9)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:166:7)
    at readableAddChunk (_stream_readable.js:146:16)
    at Socket.Readable.push (_stream_readable.js:109:10)
    at Pipe.onread (net.js:510:20)
Command: out/Release/iojs /home/iojs/build/workspace/iojs+any-pr+multi/nodes/iojs-centos5-64/test/parallel/test-http-curl-chunk-problem.js

Here is an example run: https://jenkins-iojs.nodesource.com/view/iojs/job/iojs+any-pr+multi/165/nodes=iojs-centos5-64/console (link may expire.)

[bnoordhuis]

Oops, duplicate of #790.