fix Value 'baos' is always 'null'

runphp

2022-02-13 b0b16e1fc529f36b2eeb296946c993de2ce7984b

 ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/ExceptionUtil.java

@@ -18,8 +18,7 @@
    {

        StringWriter sw = new StringWriter();

        e.printStackTrace(new PrintWriter(sw, true));

        String str = sw.toString();

        return str;

        return sw.toString();

    }



    public static String getRootErrorMessage(Exception e)