D9812: [Icon Item] Treat sources starting with a slash as local file

[Marco Martin]

mart accepted this revision.

REPOSITORY
  R242 Plasma Framework (Library)

REVISION DETAIL
  https://phabricator.kde.org/D9812

To: broulik, #plasma, hein, mwolff, davidedmundson, mart
Cc: mwolff, plasma-devel, #frameworks, ZrenBot, progwolff, lesliezhai, 
ali-mohamed, jensreuterberg, abetts, sebas, apol, mart