Set svn:executable bit on scripts that are executable.

Reset the svn:executable bit on scripts that are not executable.

R=nick@chromium.org
BUG=
TEST=

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=133438

[ncarter (slow), 2012-04-23 05:05:07]

Sure, LGTM, though this is a library.

[M-A Ruel, 2012-04-23 12:53:00]

On 2012/04/23 05:05:07, ncarter wrote:
> Sure, LGTM, though this is a library.

Oh right, I updated the CL description, I used a generic description, in general
it's the reverse. Thanks.

[commit-bot: I haz the power, 2012-04-23 12:53:12]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/maruel@chromium.org/10139027/1

[commit-bot: I haz the power, 2012-04-23 14:13:42]

Commit queue had an internal error.
Something went really wrong, probably a crash, a hickup or
simply the monkeys went out for dinner.
The relevant dude was pinged already.

[M-A Ruel, 2012-04-23 14:16:02]

On 2012/04/23 14:13:42, I haz the power (commit-bot) wrote:
> Commit queue had an internal error.
> Something went really wrong, probably a crash, a hickup or
> simply the monkeys went out for dinner.
> The relevant dude was pinged already.

The CQ doesn't like that there is no file content modification so I'll commit
manually.