lib/fs: When watching remove \\?\ for drive letters (fixes #5578) (#5633)
lib/fs: When watching remove \\?\ for drive letters (fixes #5578) (#5633)


wweich/syncthing,syncthing/syncthing,xduugu/syncthing,imsodin/syncthing,syncthing/syncthing,wweich/syncthing,AudriusButkevicius/syncthing,syncthing/syncthing,imsodin/syncthing,xduugu/syncthing,syncthing/syncthing,syncthing/syncthing,imsodin/syncthing,xduugu/syncthing,AudriusButkevicius/syncthing,xduugu/syncthing,AudriusButkevicius/syncthing,wweich/syncthing,syncthing/syncthing,AudriusButkevicius/syncthing,wweich/syncthing,imsodin/syncthing,imsodin/syncthing