util: drop Python 2.4 compat by directly importing md5 and sha1
There's been a fair amount of cruft here over the years, which we can all
just get rid of now.
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"
}