attempt to fix the torture test failure

retry.patch

diff --git a/src/tool_operate.c b/src/tool_operate.c
index f402c3f055..3e6038d9a6 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -854,10 +854,11 @@ static CURLcode post_close_output(struct per_transfer *per,
   int rc;
 
   /* Close the outs file */
   if(outs->fopened && outs->stream) {
     rc = curlx_fclose(outs->stream);
+    outs->stream = NULL;
     if(!result && rc) {
       /* something went wrong in the writing process */
       result = CURLE_WRITE_ERROR;
       errorf("curl: (%d) Failed writing body", result);
     }