[PATCH] Mark gitk script executable

The executable bit on gitk-git/gitk was lost (accidentally it seems) by 
commit 62ba5143ec2ab9d4083669b1b1679355e7639cd5.  Put it back, so that 
gitk can be run directly from a git.git checkout.

Note that the script is already executable in gitk.git, just not in 
git.git.

Signed-off-by: Anders Kaseorg <redacted>
---
 0 files changed, 0 insertions(+), 0 deletions(-)
 mode change 100644 => 100755 gitk-git/gitk

diff --git a/gitk-git/gitk b/gitk-git/gitk
old mode 100644
new mode 100755
-- 
1.7.4-rc0