Update aggregation_ism_handler.go

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: jonas089

x/core/01_interchain_security/keeper/aggregation_ism_handler.go

@@ -54,7 +54,7 @@ func (m *AggregationISMHandler) Verify(ctx context.Context, ismId util.HexAddres
 
 	// Build detailed error message with verification failures
 	errMsg := errors.Wrapf(types.ErrInsufficientVerifications,
-		"insufficient verifications: %d/%d (threshold: %d)",
+		"insufficient verifications: got %d/%d, required %d",
 		passCount, len(aggregationIsm.Modules), aggregationIsm.Threshold)
 
 	// Append individual verification errors for debugging