debugextensions: hide "ships-with-hg-core" magic string (BC)
Since we have "bundled" flag, we no longer need to rephrase "ships-with-hg-core"
to show as "internal".
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
}