Hudson 1.20 and earlier used to create redundant directories inside the workspace. For example, if the CVS module name is "foo/bar", it first created "foo/bar" and then put everything below. With this option checked off, there will be no more such unnecessary intermediate directories.

If you have multiple modules to check out, this option is forced (otherwise they'll overlap.)

This affects other path specifiers, such as artifact archivers --- you now specify "build/foo.jar" instead of "foo/build/foo.jar".