Clarify docs on GN rebase_path.

Clarify docs on GN rebase_path.

A question came up in a code review, so this adds more explicit documentation
and hints for paths ending (or not) in slashes.

Committed: https://crrev.com/e3b32676059d25162cd07201bbd33dfec3c60daf
Cr-Commit-Position: refs/heads/master@{#367623}

[brettw, 2016-01-05 19:24:25]

brettw@chromium.org changed reviewers:
+ agrieve@chromium.org

[brettw, 2016-01-05 19:24:33]

The CQ bit was checked by brettw@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-01-05 19:26:31]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1563543002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1563543002/1

[agrieve, 2016-01-05 19:42:25]

On 2016/01/05 19:26:31, commit-bot: I haz the power wrote:
> Dry run: CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1563543002/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1563543002/1

lgtm

[commit-bot: I haz the power, 2016-01-05 19:51:22]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-01-05 19:51:25]

Dry run: This issue passed the CQ dry run.

[brettw, 2016-01-05 20:00:42]

The CQ bit was checked by brettw@chromium.org

[commit-bot: I haz the power, 2016-01-05 20:03:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1563543002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1563543002/1

[commit-bot: I haz the power, 2016-01-05 20:11:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-05 20:12:27]

Description was changed from

==========
Clarify docs on GN rebase_path.

A question came up in a code review, so this adds more explicit documentation
and hints for paths ending (or not) in slashes.
==========

to

==========
Clarify docs on GN rebase_path.

A question came up in a code review, so this adds more explicit documentation
and hints for paths ending (or not) in slashes.

Committed: https://crrev.com/e3b32676059d25162cd07201bbd33dfec3c60daf
Cr-Commit-Position: refs/heads/master@{#367623}
==========

[commit-bot: I haz the power, 2016-01-05 20:12:27]

Patchset 1 (id:??) landed as
https://crrev.com/e3b32676059d25162cd07201bbd33dfec3c60daf
Cr-Commit-Position: refs/heads/master@{#367623}