Fix toDisplayString(QUrl::PreferLocalFile) on Win

When using QUrl::PreferLocalFile we do want to strip the leading slash,
as toLocalFile() would do as well.

Behavior change by means of an example:
  QUrl url(QUrl::fromLocalFile("C:/file.txt")
  url.toLocalFile() --> "C:/file.txt"

Before:
  url.toDisplayString(QUrl::PreferLocalFile) --> "/C:/file.txt"

After:
  url.toDisplayString(QUrl::PreferLocalFile) --> "C:/file.txt"

Task-number: QTBUG-41729
Change-Id: I7d425541f6077ebcf3fcf46feeb7e0f03a0d7fe2
Reviewed-by: Dominik Haumann <dhaumann@kde.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

0 files changed, 0 insertions, 0 deletions