Added test case 1050 to test --ftp-port with an IPv6 address.

Made --interface tests less restrictive on host address.

tests/data/test1047

@@ -38,12 +38,8 @@ ftp
 FTP dir list PASV with localhost --interface
  </name>
  <command>
-ftp://%HOSTIP:%FTPPORT/ --interface 127.0.0.1
+ftp://%HOSTIP:%FTPPORT/ --interface %CLIENTIP
 </command>
-# When bound to localhost, one may connect only to a local test server
-<precheck>
-perl -e "print 'Test requires default test server host address' if ( '%HOSTIP' ne '127.0.0.1' );"
-</precheck>
 </client>
 
 #