resolve path incorrectly in terminal mode about require-new

[gajus]

For documentation purposes:

curiosity:require-new gajus$ echo "require('./src')('./src')" | node

module.js:338
    throw err;
          ^
Error: Cannot find module '././src'
    at Function.Module._resolveFilename (module.js:336:15)
    at Function.require.resolve (module.js:388:19)
    at module.exports (/Users/gajus/Documents/dev/gajus/require-new/src/index.js:26:26)
    at [stdin]:1:17
    at Object.exports.runInThisContext (vm.js:54:17)
    at Object.<anonymous> ([stdin]-wrapper:6:22)
    at Module._compile (module.js:430:26)
    at node.js:567:27
    at doNTCallback0 (node.js:408:9)
    at process._tickCallback (node.js:337:13)

In the above case:

stackTrace.get()[1].getFileName() [stdin]

and

curiosity:require-new gajus$ node -e "require('./src')('./src')"

module.js:338
    throw err;
          ^
Error: Cannot find module '././src'
    at Function.Module._resolveFilename (module.js:336:15)
    at Function.require.resolve (module.js:388:19)
    at module.exports (/Users/gajus/Documents/dev/gajus/require-new/src/index.js:26:26)
    at [eval]:1:17
    at Object.exports.runInThisContext (vm.js:54:17)
    at Object.<anonymous> ([eval]-wrapper:6:22)
    at Module._compile (module.js:430:26)
    at node.js:567:27
    at doNTCallback0 (node.js:408:9)
    at process._tickCallback (node.js:337:13)

is:

stackTrace.get()[1].getFileName() [eval]

[gajus]

With this in mind, I have updated the code to use process.cwd() whenever "stdin" or "eval" is the stack origin.

[gajus]

@4368baed3c199c8284103a8842896d1d717e6720