Subversion: Access control management

[Andy Canfield]

The file /var/svn/sample/README.txt says
*    This is a Subversion repository; use the 'svnadmin' tool to examine
    it.  Do not add, delete, or modify files here unless you know how
    to avoid corrupting the repository.*
but as far as I know there are no svnadmin tools to control access to 
the repository; the only way to control access to the repository is to 
manually edit the files in the 'conf' subdirectory, which the README.txt 
file tells you not to do.