What does unicode character represent?
It's the ASCII character LF, Line Feed.
Some systems (e.g. Windows) use the combination CR+LF, , for line break, some systems (e.g. Linux) use only LF as line break, some systems (e.g. Macintosh) use only CR as line break.
So, only a LF character in an XML value would be a line break from a Linux system (or similar).
There are some great lookup tools on the Web: