test-status-rev: document one more broken test
The status for missing_content2_content2-untracked doesn't get
reported at all. Since the file does exist in the working copy, it
should reported as unknown. Document that in the test.
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"
}