fix: 微信登录补充保存username和role

node_modules/exif-parser/cmd/list.js

@@ -0,0 +1,9 @@
+var exifParser = require('../index');
+
+var buf = require('fs').readFileSync(process.argv[2]);
+var parser = exifParser.create(buf);
+var result = parser.parse();
+
+Object.keys(result.tags).forEach(function(name) {
+	console.log(name+': ' + result.tags[name]);
+});