NAnt "attribute value expected" error on attribute that spans multiple line

in XML it's valid for an attribute value to span multiple lines and NAnt supports this. However, Resharper reports this as an error "attribute value expected". Here's an example:

<property name="restoreSql" value="
RESTORE DATABASE $ FROM DISK = '$\$.bak'
WITH
MOVE 'Data' TO '$\$.mdf', MOVE 'Log' TO '$\$.ldf'
" />