[Telemetry] Un-break 'run_benchmark help run'

[Telemetry] Un-break 'run_benchmark help run'

This CL adds a temporary fix to allow run_benchmark help run to work after the
local environment switchover until we port everything to argparse.

BUG=472916
R=dtu
TEST=run_benchmark help run does not except.

Committed: https://crrev.com/39d3630ae332b437a5e9742b2732163a4bed869e
Cr-Commit-Position: refs/heads/master@{#323851}

[eakuefner, 2015-04-03 17:23:05]

ptal

[dtu, 2015-04-03 21:08:41]

lgtm

[eakuefner, 2015-04-03 21:33:46]

The CQ bit was checked by eakuefner@chromium.org

[commit-bot: I haz the power, 2015-04-03 21:34:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1063443002/1

[commit-bot: I haz the power, 2015-04-03 23:45:51]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-04-03 23:46:39]

Patchset 1 (id:??) landed as
https://crrev.com/39d3630ae332b437a5e9742b2732163a4bed869e
Cr-Commit-Position: refs/heads/master@{#323851}