changes fs getusage to return 1 additional inode to account for the directory itself
Fixes save creation for at least two games, R8XE52 (Jurassic: The Hunted), STEETR (Tetris Party Deluxe)
doesnt harm save creation in any games that i tested (about 25)
also it is now possible to boot a nand title by selecting the tmd file using File > Open
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7575 8ced0084-cf51-0410-be5f-012b33b47a6e