hgmanpage: stop using raw-unicode strings
These don't exist in Python 3, and this ends up looking a little more
explicit to Martijn and me anyway.
fixbundle() {
grep -v 'saving bundle' | grep -v 'saved backup' | \
grep -v added | grep -v adding | \
grep -v "unable to find 'e' for patching" | \
grep -v "e: No such file or directory" | \
cat
}