As long as there's a valid clone available and no other git commands
fail, we allow `git fetch` to fail and proceed processing commands. Even
if internet connectivity is down, that shouldn't necessarily prevent
sync from functioning.
The primary motivation for this change is that we expect the Trash
Guides repo to be relocated soon and I do not want that to cause the
program to stop working between the change and when I can update the
URL.
Robert Dailey
Robert Dailey