Use QStringLiteral to create strings.
Use QStringLiteral to create strings.

Change-Id: If7a9d8d2a468575081cb8075634ec090517e677c
Reviewed-by: Xizhi Zhu <6095b3dbb866d5a6b4a607e0cbd4aaa65e13c0b2@nokia.com>

qtproject/qtsystems,qtproject/qtsystems