Fix test case 534 which started to fail 2007-04-13 due to the existance

of a new host on the net with the same silly domain the test was using
for a host which was supposed not to exist.

tests/data/test534

@@ -29,7 +29,7 @@ lib533
 FTP RETR twice using multi: non-existing host and non-existing file
  </name>
  <command>
-ftp://non-existing-host.com/path/534 ftp://%HOSTIP:%FTPPORT/path/534
+ftp://non-existing-host.haxx.se/path/534 ftp://%HOSTIP:%FTPPORT/path/534
 </command>
 </client>