py3: replace a StandardError reference
This doesn't exist on py3, and the standard way of handling this seems to be to
catch both exceptions.
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
}