Fix the --keep option for svn-fast-backup, it was ignoring its argument.
Fix the --keep option for svn-fast-backup, it was ignoring its argument.

Patch by: Christopher Boumenot <boumenot@gmail.com>

* contrib/server-side/svn-fast-backup
  (parse_commandline): Grab an argument for the keep option.

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