afpcmd: can't parse AUTH arguments

[rdmark]

the internal URL parsing test fails:

afpcmd: test
Testing URL parsing
url doesn't parse
* Could not parse afp://user::name;AUTH=authtype:pa@@sword@server/volume/path
url doesn't parse
* Could not parse afp://username;AUTH=authtype:password@server/volume/path
url doesn't parse
* Could not parse afp://username;AUTH=authtype:password@server:548/volume/path
* Parsed afp://username:password@server/volume/path correctly
* Parsed afp://username@server/volume/path correctly
* Parsed afp://server/volume/path correctly
* Parsed afp://server/ correctly
* Parsed afp://server:22/ correctly
* Parsed afp://server:22 correctly
* Parsed afp://server:22/volume/ correctly

also, actually using the AUTH argument does not work