--overwrite swithc fails

[raczben]

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--overwrite swithc fails

Input

node vhdlformat.js --overwrite ./VHDLFiles/instance.vhd

Expected Behavior

To write the output back into the input file.

Actual Behavior

fs.js:636
  binding.open(pathModule._makeLong(path),
          ^

TypeError: path must be a string or Buffer
    at Object.fs.open (fs.js:636:11)
    at Object.fs.writeFile (fs.js:1277:6)
    at fs.readFile (./VHDLFormatter/vhdlformat.js:48:20)
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3)