bc_zhang/fm: fault management @ 2168468303989133b66b750b47f957580d34dad4

wcf 2168468303 change toc level		%!s(int64=4) %!d(string=hai) anos
..
main	2168468303 change toc level	%!s(int64=4) %!d(string=hai) anos
test	7ff604b061 first commit	%!s(int64=4) %!d(string=hai) anos
.DS_Store	7ff604b061 first commit	%!s(int64=4) %!d(string=hai) anos