bot_update: add --auth-refresh-token-json passthrough for apply_issue

recipe_modules/bot_update/example.expected/trychange_oauth2_json.json

Index: recipe_modules/bot_update/example.expected/trychange_oauth2_json.json
diff --git a/recipe_modules/bot_update/example.expected/trychange_oauth2.json b/recipe_modules/bot_update/example.expected/trychange_oauth2_json.json
similarity index 90%
copy from recipe_modules/bot_update/example.expected/trychange_oauth2.json
copy to recipe_modules/bot_update/example.expected/trychange_oauth2_json.json
index b0917d4bf41242ed3328919ae2a54e0e9bf86498..4ad9c7520a6138498f169c563a8b2b4c50f87938 100644
--- a/recipe_modules/bot_update/example.expected/trychange_oauth2.json
+++ b/recipe_modules/bot_update/example.expected/trychange_oauth2_json.json
@@ -4,18 +4,22 @@
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
+      "--master",

[tandrii(chromium), 2016/09/19 19:04:30]

retrain expectations.

+      "tryserver.chromium.linux",
+      "--builder",
+      "linux_rel",
+      "--slave",
+      "totallyaslave-c4",
       "--spec",
       "cache_dir = '[GIT_CACHE]'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'src', 'url': 'https://chromium.googlesource.com/chromium/src.git'}]",
-      "--patch_root",
+      "--root",
       "src",
       "--revision_mapping_file",
       "{\"src\": \"got_cr_revision\"}",
       "--git-cache-dir",
       "[GIT_CACHE]",
-      "--apply_issue_email_file",
-      "[BUILD]/site_config/.rietveld_client_email",
-      "--apply_issue_key_file",
-      "[BUILD]/site_config/.rietveld_secret_key",
+      "--apply_issue_oauth2_file",
+      "/creds/something",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",