tests/test-rebuildstate.out

convert: gitcmd wrapper for os.popen

adding bar
adding foo
% state dump
a 644          0 baz
n 644          0 foo
r   0          0 bar
% status
A baz
R bar
C foo
% state dump
n 666         -1 bar
n 666         -1 foo
% status
! bar
? baz
C foo