Append to "curl -L"'s redirect's URL

[cybercape]

I am using the -L option in CURL to follow redirections in downloading websites. Is there a way to append an argument to the redirected URL? Basically, if one has this

curl -L http://anexamplesite.com/test.php?arg=foo

and anexamplesite.com redirects to, say,

http://redirectedsite.com/test.php

it can drop the arg=foo argument. How do I tell CURL to append the argument to the redirected URL so that CURL requests instead

http://redirectedsite.com/test.php?arg=foo

?

Thanks