Refactored where the exit handler gets added

lib/appenders/file.js

@@ -1,12 +1,17 @@
 var layouts = require('../layouts')
-, path = require('path')
-, fs = require('fs')
-, streams = require('../streams')
-, os = require('os')
-, eol = os.EOL || '\n';
+  , path = require('path')
+  , fs = require('fs')
+  , streams = require('../streams')
+  , os = require('os')
+  , eol = os.EOL || '\n'
+  , openFiles = [];
 
-var openFiles = [];
-var listenerAtttached = false;
+//close open files on process exit.
+process.on('exit', function() {
+    openFiles.forEach(function (file) {
+        file.end();
+    });
+});
 
 /**
  * File Appender writing the logs to a text file. Supports rolling of logs by size.
@@ -48,16 +53,6 @@ function fileAppender (file, layout, logSize, numBackups) {
     // push file to the stack of open handlers
     openFiles.push(logFile);
 
-    //close the file on process exit.
-    if (!listenerAtttached) {
-        listenerAtttached = true;
-        process.on('exit', function() {
-            openFiles.forEach(function (file) {
-                file.end();
-            });
-        });
-    }
-
     return function(loggingEvent) {
         logFile.write(layout(loggingEvent) + eol, "utf8");
     };