coverity#706267 Uncaught exception

Change-Id: I3a63546d0797c98c1720f0987293404ec760aeac

chart2/source/tools/RegressionEquation.cxx

@@ -204,7 +204,7 @@ uno::Reference< util::XCloneable > SAL_CALL RegressionEquation::createClone()
 
 // ____ OPropertySet ____
 uno::Any RegressionEquation::GetDefaultValue( sal_Int32 nHandle ) const
-    throw(beans::UnknownPropertyException)
+    throw (beans::UnknownPropertyException, uno::RuntimeException)
 {
     const tPropertyValueMap& rStaticDefaults = *StaticRegressionEquationDefaults::get();
     tPropertyValueMap::const_iterator aFound( rStaticDefaults.find( nHandle ) );

chart2/source/tools/RegressionEquation.hxx

@@ -85,7 +85,8 @@ protected:
 
     // ____ OPropertySet ____
     virtual ::com::sun::star::uno::Any GetDefaultValue( sal_Int32 nHandle ) const
-        throw(::com::sun::star::beans::UnknownPropertyException) SAL_OVERRIDE;
+        throw (css::beans::UnknownPropertyException,
+               css::uno::RuntimeException) SAL_OVERRIDE;
 
     virtual ::cppu::IPropertyArrayHelper & SAL_CALL getInfoHelper() SAL_OVERRIDE;