Add yzshen to the watchlist of Mandoline.

WATCHLISTS

Index: WATCHLISTS
diff --git a/WATCHLISTS b/WATCHLISTS
index 8bc228b798a9095330783ec6ad3a710b0e45efc2..a0e80cbaaf049b6275e10ce79468680d7d8ba3aa 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -439,6 +439,9 @@
     'linux_seccomp_bpf': {
       'filepath': 'content/common/sandbox.*linux.cc',
     },
+    'mandoline': {
+      'filepath': 'mandoline',
+    },
     'md_settings': {
       'filepath': 'ui/webui/resources/cr_element'\
                   '|chrome/browser/resources/md_settings/'\
@@ -983,6 +986,7 @@
     'linux_sandboxing': ['jln+watch@chromium.org'],
     'linux_seccomp_bpf': ['jln+watch@chromium.org'],
     'supervised_users': ['pam+watch@chromium.org'],
+    'mandoline': ['yzshen+watch@chromium.org'],
     'md_settings': ['jhawkins+watch-md-settings@chromium.org',
                     'jlklein+watch-md-settings@chromium.org',
                     'khorimoto+watch-md-settings@chromium.org',