suzerain: #3080 update SVNREV utility

To accommodate SVN 1.7+, this little utility picked up a SQLite
dependency.  This is odd, and eventually I'd like to replace
this with something more shell-ish.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@44410 0bd85f0b-c151-43b9-a1e9-27231104551f