tests/histedit-helpers.sh

revlog: simplify rawtext return value

We're always returning a tuple even though only the raw text is being used,
and we're rebuilding another tuple again higher.

As a bonus, this will remove one tuple creation and deletion
per `raw_text` call, hence fewer gc calls, etc.

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
}