metatree: always clear fd to -1
meta_tree_clear clears fd to 0 currently, however it should be set to -1 to avoid risk that fd 0 is closed, when meta_tree_clear is called twice. https://bugzilla.gnome.org/show_bug.cgi?id=598561
parent
e8180f4a
meta_tree_clear clears fd to 0 currently, however it should be set to -1 to avoid risk that fd 0 is closed, when meta_tree_clear is called twice. https://bugzilla.gnome.org/show_bug.cgi?id=598561