[Patch] Make add_item smarter

[Pierre A. Humblet]

Yes, we need to remove the final slash, it can be present at the
output of normalize_path

 150  761725 [main] mount 671605 mount_info::add_item: c:/gggg/[c:\gggg\],
/hagfsfd/[/hagfsfd/], 0xA

Pierre