Ignore seed_steps to avoid crashing bots if they update with run_slave.
Ignore seed_steps to avoid crashing bots if they update with run_slave.

Because annotated_run uses the parameter before it gets to auto update itself.

R=agable@chromium.org
BUG=372179

Review URL: https://codereview.chromium.org/421213010

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@285958 0039d316-1c4b-4281-b951-d872f2087c98

shishkander/recipes-py,shishkander/recipes-py,luci/recipes-py,luci/recipes-py