Add the NOTRY command on roll_deps.py

Motivation: The current workflow is to submit via `git cl dcommit`.
As we move to automated nightly creation of the DEPS roll CLs, we want
to make it easier for the submitter to speed along a clean roll.

BUG=skia:
R=borenet@google.com, robertphillips@google.com, rmistry@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/133933009

git-svn-id: http://skia.googlecode.com/svn/trunk@13211 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/roll_deps.py b/tools/roll_deps.py
index 3767df4..089b9b0 100755
--- a/tools/roll_deps.py
+++ b/tools/roll_deps.py
@@ -744,7 +744,9 @@
             'Old Skia revision: %s\n'
             'New Skia revision: %d\n'
             'Control CL: %s\n\n'
-            'This CL was created by Skia\'s roll_deps.py script.\n'
+            'This CL was created by Skia\'s roll_deps.py script.\n\n'
+            'Bypassing commit queue trybots:\n'
+            'NOTRY=true\n'
             % (revision, master_revision, master_hash[:8],
                old_revision, revision, control_url))
         codereview = GitBranchCLUpload(config, message, branch)