rebase: change "result would have 3 parent" error message (BC)
The old error message "cannot use revision REV as base, result would have 3
parents" is confusing - why use REV as base? why add a new parent?.
This patch changes it to "cannot move parent", which seems better.
Differential Revision: https://phab.mercurial-scm.org/D342
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
}