Add myself (jln) to the Linux sandbox watchlist

BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10389212

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@137944 0039d316-1c4b-4281-b951-d872f2087c98

WATCHLISTS

@@ -375,7 +375,7 @@
     'dns': ['mmenke@chromium.org'],
     'media': ['feature-media-reviews@chromium.org'],
     'ipc': ['jam@chromium.org', 'darin-cc@chromium.org'],
-    'linux-sandboxing': ['agl@chromium.org'],
+    'linux-sandboxing': ['agl@chromium.org', 'jln+watch@chromium.org'],
     'sync': ['tim@chromium.org', 'nick@chromium.org',
              'akalin@chromium.org', 'rsimha@chromium.org'],
     'tools': ['pam+watch@chromium.org'],