Fix rebaseline tool to use "git cl land" instead of "git cl dcommit".

Fix rebaseline tool to use "git cl land" instead of "git cl dcommit".

BUG=535351
TBR=ojan@chromium.org,dpranke@chromium.org
NOTRY=true

Committed: https://crrev.com/a573b5f0b11b3d85be6dbc2f156ec94f046c7275
Cr-Commit-Position: refs/heads/master@{#352181}

[joelo, 2015-10-02 23:40:56]

joelo@chromium.org changed reviewers:
+ dpranke@chromium.org, jsbell@chromium.org, ojan@chromium.org

[joelo, 2015-10-02 23:42:28]

The CQ bit was checked by joelo@chromium.org

[commit-bot: I haz the power, 2015-10-02 23:43:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1388553002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1388553002/1

[ojan, 2015-10-02 23:44:30]

lgtm

[Dirk Pranke, 2015-10-02 23:47:57]

lgtm

[commit-bot: I haz the power, 2015-10-02 23:53:19]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-02 23:56:36]

Patchset 1 (id:??) landed as
https://crrev.com/a573b5f0b11b3d85be6dbc2f156ec94f046c7275
Cr-Commit-Position: refs/heads/master@{#352181}