npm install log4js-extendlog4js-node-extend  
==================
It add useful meta data of code (file-name, function-name line-number, column-number) for log4js-node.
Example
---------
```
[2014-02-18 12:24:14.238] [INFO] category - test at
Installation
---------
``
npm install log4js-extend
Usage
---------
`js
const log4js = require("log4js");
const log4js_extend = require("log4js-extend");
log4js_extend(log4js, {
path: __dirname,
format: "at @name (@file:@line:@column)"
});
const logger = log4js.getLogger("category");
logger.info("test");
`
Options
---------
default: null
default: "at @name (@file:@line:@column)"`
#### Keywords will replace as below.
* @name : function name
* @file : file name
* @line : line number
* @column : column number