multi-line strings aren't recognized correctly.

[MartinNowak]

enum nestedStmtTmplt = q"SQL
    SELECT COUNT(*) cnt, tags1.name, tags1.id
    FROM track_tags track_tags1
    JOIN tags tags1 ON tags1.id = track_tags1.tag_id
    GROUP BY track_tags1.tag_id
    ORDER BY cnt DESC
    LIMIT -1;
SQL";