suzerain: correct @file comment

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@42373 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: #2503 mv largo_state to suzerain/

Have decided this is generally useful.  Moving it to the the
suzerain namespace and pushing its tests into the tests/ tree.

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@42374 0bd85f0b-c151-43b9-a1e9-27231104551f