Stop redirect stdout/stderr and remove close_fds=True

scripts/slave/recipe_modules/goma/example.expected/mac.json

 [
   {
     "cmd": [],
     "name": "ensure_goma"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::cipd]/resources/bootstrap.py",
@@ skipping 67 matching lines @@
     },
     "name": "start_goma"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::goma]/resources/cloudtail_utils.py",
       "start",
       "--cloudtail-path",
-      "[CACHE]/cipd/goma/cloudtail"
+      "[CACHE]/cipd/goma/cloudtail",
+      "--pid-file",
+      "[TMP_BASE]/cloudtail.pid"
     ],
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
-    "name": "start cloudtail",
-    "stdout": "/path/to/tmp/"
+    "name": "start cloudtail"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport multiprocessing\nimport sys\n\njob_limit = 200\nif sys.platform.startswith('linux'):\n  # Use 80 for linux not to load goma backend.\n  job_limit = 80\n\ntry:\n  jobs = min(job_limit, multiprocessing.cpu_count() * 10)\nexcept NotImplementedError:\n  jobs = 50\n\nprint jobs\n"
     ],
     "name": "calculate the number of recommended jobs",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
@@ skipping 89 matching lines @@
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json"
     },
     "name": "upload_log"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::goma]/resources/cloudtail_utils.py",
       "stop",
-      "--killed-pid",
-      "12345"
+      "--killed-pid-file",
+      "[TMP_BASE]/cloudtail.pid"
     ],
     "name": "stop cloudtail"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]