error_search
static int error_search(mnt_map *, char *, char *, char **, time_t *);
{ "root", root_init, error_reload, error_search, error_mtime, MAPC_ROOT },
{ "error", error_init, error_reload, error_search, error_mtime, MAPC_NONE },
m->search = alloc >= MAPC_ALL ? error_search : mt->search;