src/sage/geometry/relative_interior.py: Fix doctest output

Author: Matthias Koeppe

src/sage/geometry/relative_interior.py

@@ -80,6 +80,7 @@ def ambient(self):
             Relative interior of
              a 1-dimensional polyhedron in ZZ^2 defined as the convex hull of 2 vertices
             sage: ri_segment.ambient()
+            Vector space of dimension 2 over Rational Field
         """
         return self._polyhedron.ambient()
 
@@ -94,6 +95,7 @@ def ambient_vector_space(self, base_field=None):
             Relative interior of
              a 1-dimensional polyhedron in ZZ^2 defined as the convex hull of 2 vertices
             sage: ri_segment.ambient_vector_space()
+            Vector space of dimension 2 over Rational Field
         """
         return self._polyhedron.ambient_vector_space(base_field=base_field)