tests/test-revlog-ancestry.py.out

filesets: use example with quotes for encoding predicate

A user on IRC was confused that "encoding(ASCII)" works and
"encoding(UTF-8)" fails with "parse error: encoding requires an
encoding name".

Ancestors of 5
4 2 0 
Ancestors of 6 and 5
3 4 2 1 0 
Ancestors of 5 and 4
4 2 0 

Descendants of 5
7 8 
Descendants of 5 and 3
6 7 8 
Descendants of 5 and 4
5 7 8