py3: add b'' to test-ui-color.py
# skip-blame because just b'' prefixes
Differential Revision: https://phab.mercurial-scm.org/D2359
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
}