fix bad import; comment

Author: bknueven

Diff for: .ruff.toml

@@ -1,4 +1,4 @@
-# ignore Pyomo models, PySP code
+# ignore old Pyomo models
 extend-exclude = [
     "ReferenceModel*.py",
     "./mpisppy/utils/callbacks/termination/tests/markshare2.py",

Diff for: mpisppy/generic_cylinders.py

@@ -17,7 +17,7 @@
 import mpisppy.utils.cfg_vanilla as vanilla
 import mpisppy.utils.config as config
 import mpisppy.utils.sputils as sputils
-from mpisppy.convergers.norm_rho_converge import NormRhoConverger
+from mpisppy.convergers.norm_rho_converger import NormRhoConverger
 from mpisppy.convergers.primal_dual_converger import PrimalDualConverger
 from mpisppy.extensions.extension import MultiExtension
 from mpisppy.extensions.fixer import Fixer