Octals in Node 4 strict mode

[wesleyeff]

I'm having an issue running winston in Node 4.1.2 strict mode. I get the following error. You can wrap octal literals in single quote to fix the issue. I have a pull request ready and have tested on Node 0.10, 0.12 and 4.1.

/winston/lib/winston/common.js:367
  fs.open(options.file, 'a+', 0644, function(err, fd) {
                              ^^^^

SyntaxError: Octal literals are not allowed in strict mode.

[ChALkeR]

@wesleyeff You shouldn't use --use-strict v8 option in Node.js. It changes the languange behavior in some cases, and might break modules that do not expect it. And you might even not notice the fact that something is broken until bad things happen.

Only the module author should decide if it's ok to force strict mode in his or her module, and he or she could do that by opting in for strict mode per-file.

[indexzero]

This was fixed by #721.