tests/histedit-helpers.sh

histedit-test: rename histedit-revspec into histedit-argument

We have no testing for argument. This small file seems perfect once but needs a
rename.

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"
}