Fixes #2523 -- remove resetting of process.execPath

Author: jashkenas

lib/coffee-script/command.js

@@ -80,7 +80,6 @@
     literals = opts.run ? sources.splice(1) : [];
     process.argv = process.argv.slice(0, 2).concat(literals);
     process.argv[0] = 'coffee';
-    process.execPath = require.main.filename;
     _results = [];
     for (_i = 0, _len = sources.length; _i < _len; _i++) {
       source = sources[_i];

src/command.coffee

@@ -75,7 +75,6 @@ exports.run = ->
   literals = if opts.run then sources.splice 1 else []
   process.argv = process.argv[0..1].concat literals
   process.argv[0] = 'coffee'
-  process.execPath = require.main.filename
   for source in sources
     compilePath source, yes, path.normalize source