Fix extra line feeds in link title

[snnz]

Extra line feeds appear in the parsed link titles containing Windows-style line breaks, because \n that is peeked after \r is not skipped.

[xoofx]

Thanks! Good catch, could you add a test?

[snnz]

I've added a test. In the current version, it fails with the message:
Expected string length 16 but was 17. Strings differ at index 9. Expected: "this\ris\r\na\ntitle" But was: "this\ris\r\n\na\ntitle"