Also, make the ftp server return a canned response that doesn't
cause XML verification problems. Although the test file format
isn't technically XML, it's still handy to be able to use XML
tools to verify and manipulate them.
Consistently use CRLF instead. The mixed endings weren't
documented so I assume they were unintentional.
This change doesn't matter for curl itself but makes using
the tests with a proxy between curl and the test server
more convenient.
Tests that consistently use no carriage returns were
left unmodified as one can easily work around this.
