Define URL prefix restrictions (-j)

Syntax: -jURL

Excludes URLs not having the prefix URL. This option may be specified multiple times to include multiple prefixes. This will allow you to walk a subdirectory of a server without accidentally wandering out from under that subdirectory.

e.g.: ``gw -jhttp://www.mysite.com/docs/'' will skip all URLs NOT beginning with http://www.mysite.com/docs/