Update doc text to not run afoul of Sphinx short description logic

Author: jsiirola

pyomo/contrib/pyros/uncertainty_sets.py

@@ -724,7 +724,7 @@ def dim(self):
 
 class BoxSet(UncertaintySet):
     """
-    A hyper-rectangle (a.k.a. "box").
+    A hyper-rectangle (i.e., "box").
 
     Parameters
     ----------
@@ -868,7 +868,7 @@ def set_as_constraint(self, uncertain_params, **kwargs):
 
 class CardinalitySet(UncertaintySet):
     """
-    A cardinality-constrained (a.k.a. "gamma") set.
+    A cardinality-constrained (i.e., "gamma") set.
 
     Parameters
     ----------
@@ -1718,7 +1718,7 @@ def add_bounds_on_uncertain_parameters(model, config):
 
 class FactorModelSet(UncertaintySet):
     """
-    A factor model (a.k.a. "net-alpha" model) set.
+    A factor model (i.e., "net-alpha" model) set.
 
     Parameters
     ----------