Don't follow symlink when creating torrents

Now on Windows, it won't follow/include .lnk files when creating torrents.
Note that libtorrent will throw errors if we force adding .lnk files.

Closes #13286.

src/base/bittorrent/torrentcreator.cpp

@@ -123,7 +123,7 @@ void TorrentCreator::run()
             // need to sort the file names by natural sort order
             QStringList dirs = {m_params.sourcePath.data()};
 
-            QDirIterator dirIter {m_params.sourcePath.data(), (QDir::AllDirs | QDir::NoDotAndDotDot), QDirIterator::Subdirectories};
+            QDirIterator dirIter {m_params.sourcePath.data(), (QDir::AllDirs | QDir::NoDotAndDotDot | QDir::NoSymLinks), QDirIterator::Subdirectories};
             while (dirIter.hasNext())
             {
                 const QString filePath = dirIter.next();
@@ -138,7 +138,7 @@ void TorrentCreator::run()
             {
                 QStringList tmpNames;  // natural sort files within each dir
 
-                QDirIterator fileIter {dir, QDir::Files};
+                QDirIterator fileIter {dir, (QDir::Files | QDir::NoSymLinks)};
                 while (fileIter.hasNext())
                 {
                     const QFileInfo fileInfo = fileIter.nextFileInfo();