bug: Fix for Windows' drain error on process.exit (Issue 3584)

Output to stderr or stdout is not always completly written if
you exit the process. Issue happens only on Windows using pipes.

Issue nodejs/node-v0.x-archive#3584 will be fixed in
node.js 0.12.

cli.js

@@ -4,6 +4,7 @@
 'use strict';
 
 var conf = require('./conf.js'),
+    exit = require('exit'),
     configurationPath,
     isRead;
 
@@ -14,7 +15,7 @@ if( process.argv.length < 3
     console.log( 'Usage: node ' + process.argv[1] + ' [-u] <configuration path>\n\n' +
                  '-u: Update configuration. Configuration is read from stdin.\n' +
                  'Default is to display the configuration at stdout.');
-    process.exit(1);
+    exit(1);
 }
 
 isRead = process.argv.length === 3;
@@ -25,7 +26,7 @@ conf.initOnlyFiles(configurationPath);
 if( isRead) {
     var value = conf.get();
     process.stdout.write(JSON.stringify(value, null, 2));
-    process.exit();
+    exit(0);
 } else {
     process.stdin.setEncoding('utf8');
 
@@ -38,14 +39,14 @@ if( isRead) {
                 if(e instanceof SyntaxError) {
                     process.stderr.write('Invalid JSON: ');
                     process.stderr.write(e.message);
-                    process.exit(1);
+                    exit(1);
                 } else {
                     process.stderr.write(e);
-                    process.exit(2);
+                    exit(2);
                 }
             }
             conf.save(function () {
-                process.exit();
+                exit();
             })
         }
     });

package.json

@@ -5,7 +5,8 @@
     "dependencies": {
         "nconf": "^0.6.9",
         "fs-extra": "^0.9.1",
-        "async": "^0.9.0"
+        "async": "^0.9.0",
+        "exit": "^0.1.2"
     },
     "devDependencies": {
         "nodeunit": "^0.9.0"