Unminify formatBytes

There's no reason to minify formatBytes it saves nothing.  Use the
unminified version as published.

lib/manager/modManager.js

@@ -19,8 +19,19 @@ const fileOps = require("lib/fileOps");
 function ellipse(str, max){
    return str.length > (max - 3) ? str.substring(0,max-3) + '...' : str;
 }
+
 // https://stackoverflow.com/questions/15900485/correct-way-to-convert-size-in-bytes-to-kb-mb-gb-in-javascript
-function formatBytes(a,b){if(0==a)return"0 Bytes";var c=1024,d=b||2,e=["Bytes","KB","MB","GB","TB","PB","EB","ZB","YB"],f=Math.floor(Math.log(a)/Math.log(c));return parseFloat((a/Math.pow(c,f)).toFixed(d))+" "+e[f]};
+function formatBytes(size, decimals) {
+	if (bytes === 0) return '0 Bytes';
+
+	const k = 1024;
+	const dm = decimals < 0 ? 0 : decimals;
+	const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+
+	const i = Math.floor(Math.log(bytes) / Math.log(k));
+
+	return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
+}
 
 
 /**