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You should first commit a change adding themselves to the CREDITS file. If you want to do additional test commits, something like adding a single newline to the end of an inoffensive file in a subdirectory, or removing it again, would do the trick.

The first time you commit something your commit message needs to be moderated through, so don't be surprised if it doesn't show up for awhile.

EOL-Style

You should also ensure that their checkout has the svn:eol-style property set to native throughout, as (apparently) this policy cannot be set server-wide. Do this by editing the file ~/.subversion/config and adding these lines to the end:

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