svn hook for the empty files detection

[ak]

Summary

The svn hook for the empty files detection. Implementation is shamelessly stolen from antoine's svnadmin/hooks/scripts/stage-only.sh

Test Plan

Add the hook, make a few commits.

[mat]

Mmmm, do we have an empty file problem ?

[ak]

Several appear every month. I can continue to remove them, but IMO svn hook will be a better solution.

[mat]

If you've tested it and it works, go with it. Don't forget to hook it up in hooks/pre-commit

[mat]

Also, don't forget to add all the relevant props, especially the executable one :-)

[miwi]

Should we not also check for empty directories ?

[ak]

Should we not also check for empty directories

The hook does that. I've uploaded the correct patch.
Sorry about that.

[miwi]

Great Thanks a lot ;).

[ak]

Updated patch, now with check for empty directories.

[miwi]

In D279#16, @ak wrote:

Updated patch, now with check for empty directories.

Looks good to me.

[ak]

Commited, thanks for review.