Add a warning about svnlook and svnadmin to the svn+ssh checklist.
Add a warning about svnlook and svnadmin to the svn+ssh checklist.

Patch by: Andy Whitcroft <apw@shadowen.org>
          me

* doc/book/book/ch06.xml
  (svn-ch-6-sect-5): Mention that svnlook and svnadmin need to access
   the repository with a sane umask, in addition to svnserve.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion