tests: phase out haxx.se

Instead of using haxx.se as a fixed magic host name in lots of tests,
this is a first step to move toward the generic example.com host
instead.

tests/data/test1021

@@ -102,7 +102,7 @@ CURL_GETHOSTNAME=curlhost
 LD_PRELOAD=%PWD/libtest/.libs/libhostname.so
  </setenv>
  <command>
-http://test.remote.haxx.se:1021/path/10210002 --proxy http://%HOSTIP:%HTTPPORT --proxy-user silly:person --proxy-anyauth --proxytunnel
+http://test.remote.example.com:1021/path/10210002 --proxy http://%HOSTIP:%HTTPPORT --proxy-user silly:person --proxy-anyauth --proxytunnel
 </command>
 <precheck>
 chkhostname curlhost
@@ -115,23 +115,23 @@ chkhostname curlhost
 ^User-Agent: curl/.*
 </strip>
 <protocol>
-CONNECT test.remote.haxx.se:1021 HTTP/1.1
-Host: test.remote.haxx.se:1021
+CONNECT test.remote.example.com:1021 HTTP/1.1
+Host: test.remote.example.com:1021
 Proxy-Connection: Keep-Alive
 
-CONNECT test.remote.haxx.se:1021 HTTP/1.1
-Host: test.remote.haxx.se:1021
+CONNECT test.remote.example.com:1021 HTTP/1.1
+Host: test.remote.example.com:1021
 Proxy-Authorization: NTLM TlRMTVNTUAABAAAABoIIAAAAAAAAAAAAAAAAAAAAAAA=
 Proxy-Connection: Keep-Alive
 
-CONNECT test.remote.haxx.se:1021 HTTP/1.1
-Host: test.remote.haxx.se:1021
+CONNECT test.remote.example.com:1021 HTTP/1.1
+Host: test.remote.example.com:1021
 Proxy-Authorization: NTLM TlRMTVNTUAADAAAAGAAYAEAAAAAYABgAWAAAAAAAAABwAAAABQAFAHAAAAAIAAgAdQAAAAAAAAAAAAAABoKBAKAeQjzKtCQ7ubW8S6MN7B59436GAxPu0CVROwwNBsgxML49gcbAXLT/bU+H5wrS9XNpbGx5Y3VybGhvc3Q=
 Proxy-Connection: Keep-Alive
 
 GET /path/10210002 HTTP/1.1
 User-Agent: curl/7.12.3-CVS (i686-pc-linux-gnu) libcurl/7.12.3-CVS OpenSSL/0.9.6b zlib/1.1.4
-Host: test.remote.haxx.se:1021
+Host: test.remote.example.com:1021
 Accept: */*
 
 </protocol>