minor off-by-one in file_storage array allocation
minor off-by-one in file_storage array allocation

git-svn-id: f73d3a8135a81ac54074f42e0d79c0ba7e35ca85@8174 a83610d8-ad2a-0410-a6ab-fc0612d85776

svn2github/libtorrent-rasterbar-RC_0_16,svn2github/libtorrent-rasterbar-RC_0_16,svn2github/libtorrent-rasterbar-RC_0_16,svn2github/libtorrent-rasterbar-RC_0_16,svn2github/libtorrent-rasterbar-RC_0_16,svn2github/libtorrent-rasterbar-RC_0_16