Use utf-8 as checker appes mode report encoding

[yzy-1]

encoding=windows-1251 tells the XML parser to parse the entire XML as windows-1251 encoding. Since this encoding is ASCII compatible, this works fine in most cases. However, some "smart" parsers will parse the XML according to the windows-1251 encoding and cause errors when the message contains characters that are not in the windows-1251 range (such as Chinese characters).

Since modern editors will save code in utf-8 encoding by default, the resulting report information should also be utf-8 encoded.