Implicitly adding padding between title-only groups can add extra noise

[epage]

From rust-lang/cargo#15942

[NOTE] waiting for foo v0.0.1 to be available at registry `alternative`
  |
[HELP] you may press ctrl-c to skip waiting; the crate should be available shortly

should probably be

[NOTE] waiting for foo v0.0.1 to be available at registry `alternative`
[HELP] you may press ctrl-c to skip waiting; the crate should be available shortly