title: Sonar pdf report doesn't show Issue details file
body: <p>We use Sonar 4.5.1 . The sonar-pdf-plugin is sonar-pdfreport-plugin-1.5-SNAPSHOT . After the sonar pdf report is downloaded from dashboard, we see that 'Issue details' section doesn't display the file name and line number details as shown in screenshot below<a href="https://i.stack.imgur.com/rXJuk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rXJuk.png" alt="enter image description here"></a></p>