compare_results.sh: less drastic wording

We don't currently fail test runs from mismatching results, it's just for human
convenience. So don't say things like "Failing due to skipped tests", it's
confusing.

Summarize once the need to update results instead.

Change-Id: Ibafa75bd54df07253780c6af3a68a0a4d148e64b
1 file changed