Change bc breaks entry from `bc` to `B`.
Change bc breaks entry from `bc` to `B`.

Newer symphony console changes cause choices that begin with the same
letter to be a bit more difficult to enter, especially when one is a
substring of the other.  Changing this prefix will make that behave
better.

guywithnose/release-notes,guillermoandrae/release-notes,nubs/release-notes