tests/histedit-helpers.sh

test: make test-propertycache.py python2.4 compatible

The subprocess module have not `check_call` method in python2.4. Fall back to
calling `check` with return code verification.

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"
}