(void) {  int foundit;  git_submodule *sm;  git_buf buf = GIT_BUF_INIT;  unsigned int sm_location;   g_repo = setup_fixture_submodule_simple();   cl_git_pass(git_buf_joinpath(&buf, git_repository_workdir(g_repo), ".gitmodules"));  cl_git_rewritefile(buf.ptr,       "[submodule \"" EVIL_SM_NAME