actions: eval_expr_top() should be using subpath and not pathname

Subpath is the path rooted at the root of the destination filesystem.
It includes renames (due to name conflicts), and moves.

Pathname is the original source pathname rooted at whatever pathname(s)
were given on the command line.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
1 file changed