Comment 36 for bug 1579580

Another regression possibility is that some user was relying (or will rely) on the more verbose output and it'll no longer be there. For example, are there more useful messages that will also be suppressed with -q?

However, on balance I think this is worth doing regardless, as the spam will make any useful messages not obvious anyway, and the user can always invert the situation by overriding to remove the -q locally.