PATCH [git/contrib] Avoid failing to create ${__git_tcsh_completion_script} when 'set noclobber' is in effect (af7333c)

Junio,

This is my 1st time doing this, sorry. I hope this satisfies the git Sign Off procedure.

Problem Description:

tcsh users who happen to have 'set noclobber' elsewhere in their ~/.tcshrc or ~/.cshrc startup files get a 'File exist' error, and the tcsh completion file doesn't get generated/updated.  Adding a `!` in the redirect works correctly for both clobber and noclobber users.

Developer's Certificate of Origin 1.1

        By making a contribution to this project, I certify that:

        (a) The contribution was created in whole or in part by me and I
            have the right to submit it under the open source license
            indicated in the file; or

        (b) The contribution is based upon previous work that, to the best
            of my knowledge, is covered under an appropriate open source
            license and I have the right under that license to submit that
            work with modifications, whether created in whole or in part
            by me, under the same open source license (unless I am
            permitted to submit under a different license), as indicated
            in the file; or

        (c) The contribution was provided directly to me by some other
            person who certified (a), (b) or (c) and I have not modified
            it.

        (d) I understand and agree that this project and the contribution
            are public and that a record of the contribution (including all
            personal information I submit with it, including my sign-off) is
            maintained indefinitely and may be redistributed consistent with
            this project or the open source license(s) involved.

 Signed-off-by: Ariel Faigon <github.2009@yendor.com>

 git patch follows.

---
 contrib/completion/git-completion.tcsh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)