Change path to internal-try rietveld credentials

To match where it ended up being located.

BUG=642150

Review-Url: https://chromiumcodereview.appspot.com/2436853002

recipe_modules/bot_update/api.py

@@ -130,9 +130,9 @@ class BotUpdateApi(recipe_api.RecipeApi):
     oauth2_json_file = email_file = key_file = None
     if oauth2_json:
       if self.m.platform.is_win:
-        oauth2_json_file = 'C:\\creds\\refresh_tokens\\rietveld.json'
+        oauth2_json_file = 'C:\\creds\\refresh_tokens\\internal-try'
       else:
-        oauth2_json_file = '/creds/refresh_tokens/rietveld.json'
+        oauth2_json_file = '/creds/refresh_tokens/internal-try'
     elif patch_oauth2:
       # TODO(martiniss): remove this hack :(. crbug.com/624212
       if use_site_config_creds:

recipe_modules/bot_update/example.expected/trychange_oauth2_json.json

@@ -13,7 +13,7 @@
       "--git-cache-dir",
       "[GIT_CACHE]",
       "--apply_issue_oauth2_file",
-      "/creds/refresh_tokens/rietveld.json",
+      "/creds/refresh_tokens/internal-try",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",

recipe_modules/bot_update/example.expected/trychange_oauth2_json_win.json

@@ -13,7 +13,7 @@
       "--git-cache-dir",
       "[GIT_CACHE]",
       "--apply_issue_oauth2_file",
-      "C:\\creds\\refresh_tokens\\rietveld.json",
+      "C:\\creds\\refresh_tokens\\internal-try",
       "--output_json",
       "/path/to/tmp/json",
       "--revision",