Clang: Simplify some condition

Change-Id: I4d68734b2d30d7922359020ea2c64d764d6efb7a
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
ClangCodeModel.pluginspec: s/Nok/Dig/

Change-Id: I3e7bc182350702c72a99389ff4b92ad58de8efe6
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>