Add myself to the watchlist for depot_tools

WATCHLISTS

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Watchlist Rules
 # Refer: http://dev.chromium.org/developers/contributing-code/watchlists
 
 {
 
   'WATCHLIST_DEFINITIONS': {
     'this_file': {
       'filepath': '^WATCHLISTS$',
     },
     'depot_tools': {
       'filepath': '.+',
     },
   },
 
   'WATCHLISTS': {
     'this_file': ['nirnimesh@chromium.org'],
     'depot_tools': ['maruel@chromium.org', 'dpranke@chromium.org',
-                    'cmp+cc@chromium.org'],
+                    'cmp+cc@chromium.org', 'iannucci+depot_tools@chromium.org'],
   },
 
 }