Merge branch 'mm/no-shell-escape-in-die-message'

Fixes a minor bug in "git rebase -i" (there could be others, as the root cause is pretty generic) where the code feeds a random, data dependeant string to 'echo' and expects it to come out literally. * mm/no-shell-escape-in-die-message: die_with_status: use "printf '%s\n'", not "echo"