D5392: Fix build with Qt 5.9

Mon Apr 10 22:13:48 UTC 2017

apol created this revision.
Restricted Application added a project: Frameworks.
Restricted Application added a subscriber: Frameworks.

REVISION SUMMARY
  Otherwise we get the following error:
  /home/apol/devel/frameworks/khtml/src/khtml_factory.h:31: Error: Plugin Metadata file "" could not be opened: file to open is a directory

  Arguably it's something to fix upstream, but also having `FILE ""` doesn't add
  much either.

TEST PLAN
  Now it compiles, tests pass, khelpcenter runs.

REPOSITORY
  R313 KHtml

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D5392

AFFECTED FILES
  src/khtml_factory.h

To: apol
Cc: #frameworks
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