Respond to two static analysis issues in dirtree_path() reported by Ashwini Sharma.

dirtree->name is an array, not a pointer, so can't be zero. Remove the test.

We dereference plen without checking it for null but calling dirtree_path(0, 0)
is pilot error: only the _first_ call can have plen = 0. Add a comment.
1 file changed