Merge pull request #2708 from benediktjohannes/patch-5

Fix notImplementedError message

Author: Balandat

gpytorch/variational/unwhitened_variational_strategy.py

@@ -73,9 +73,8 @@ def pseudo_points(self) -> tuple[Tensor, Tensor]:
         # retrieve the variational mean, m and covariance matrix, S.
         if not isinstance(self._variational_distribution, CholeskyVariationalDistribution):
             raise NotImplementedError(
-                "Only CholeskyVariationalDistribution has pseudo-point support currently, ",
-                "but your _variational_distribution is a ",
-                self._variational_distribution.__name__,
+                "Only CholeskyVariationalDistribution has pseudo-point support currently, "
+                f"but your _variational_distribution is a {type(self._variational_distribution).__name__}"
             )
 
         # retrieve the variational mean, m and covariance matrix, S.