Yeps,

It seems the Ubuntu libcurl maintainers have decided to do their own little
patches to libcurl their own way without telling us:

   http://launchpadlibrarian.net/11756646/curl_7.16.4-2ubuntu2.debdiff

Interestingly, this particular code has not been modified since 7.16.4 but yet
the bug report they did this fix for claims that 7.17.0 and later no longer
produces the problem... ?

The bug report seems to be this:

   https://bugs.launchpad.net/ubuntu/+source/curl/+bug/150277

I'll also admit that I don't quite understand the fix...

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