Chad Whitacre e2d6b353e8 Tighten up condition in depgraph.sh
I ran into a circumstance where it appears that there were changes other
than to the two files we care about, leading to an empty commit and a CI
failure:

https://app.circleci.com/pipelines/github/tahoe-lafs/tahoe-lafs/320/workflows/7d045f5f-1536-4cfa-b232-42837d4c9334/jobs/22127/steps
2020-07-14 06:42:45 -04:00
..