Matt Harbison <matt_harbison@yahoo.com> [Mon, 11 Jan 2016 21:00:29 -0500] rev 27722
summary: print unstable, bumped and divergent as unconditionally plural
This aligns with the unconditional plural output for the update line contents,
as well as the incoming/outgoing bookmarks line. It also matches the message
in evolve's summary hook as of 4f83b2d2d20d. (Though I thought this was removed
recently?)