set quiet for attach

Signed-off-by: Nhaozi007 <liuhao27@huawei.com>

src/lcrcontainer_execute.c

@@ -571,6 +571,7 @@ static void execute_lxc_attach(const char *name, const char *path, const struct
     add_array_elem(params, args_len, &i, "-P");
     add_array_elem(params, args_len, &i, path);
     add_array_elem(params, args_len, &i, "--clear-env");
+    add_array_elem(params, args_len, &i, "--quiet");
     add_array_kv(params, args_len, &i, "--logfile", request->logpath);
     add_array_kv(params, args_len, &i, "-l", request->loglevel);
     add_array_kv(params, args_len, &i, "--in-fifo", request->console_fifos[0]);