LONG FILE NAME _shared.py

[outtycast]

**I've make this patch for long file names in _shared.py.

sometimes the path longfile names mod is already present and it doubles it causing an exception**

`
def _write_external_links(self, filepath):
retVal = {}
filename = filepath
if os.name == "nt":
# If the absolute path to the file is too long, append the magic prefix
if len(os.path.abspath(filename)) > 255:
if "\\?\" not in filename:
filename = u"\\?\%s" % (os.path.abspath(filename))

`

[khamid1612]

#114 try this

[MistFenix]

#114 try this

Not working for me what you did