Unexpected diff when writing XML

[cuixq]

Texts are escaped to 	 when we write XML in Maven updater. Go does escaping in EncodeToken: https://github.com/golang/go/blob/master/src/encoding/xml/marshal.go#L223

[cuixq]

Not only tabs are escaped but also other characters: https://github.com/golang/go/blob/master/src/encoding/xml/xml.go#L1916

[cuixq]

Besides the escaped texts, due to issue https://github.com/golang/go/issues/21399 self-closing tags are not encoded as expected.

We may consider refactoring how to write XMLs: instead of calling xml.Encode(), write the content directly to avoid unexpected behaviour.

[oliverchang]

Are there remaining issues to track here, or can we close this @cuixq ?

[cuixq]

I noticed one issue of multiple-line self-closing tag encoded into one line:

<a 
something
something />

is now

<a something something />

this seems low priority though.

[cuixq]

Going to track this in separate issues.