fix move_storage fail_if_exist logic. First check to see if the root folder exists, as an early exit
fix move_storage fail_if_exist logic. First check to see if the root folder exists, as an early exit

git-svn-id: 4f0141143c3c635d33f1b9f02fcb2b6c73e45c89@8396 a83610d8-ad2a-0410-a6ab-fc0612d85776

archos-sa/libtorrent-avp,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp,archos-sa/libtorrent-avp