Constant MSG_LONG_ABOUT 

pub const MSG_LONG_ABOUT: &str = "Queue a message for the mission's orchestrator.\n\n\
     Messages queue and are processed between worker runs by default; the \
     orchestrator reads them at its next decision point and records a \
     decision. Passing --interrupt additionally aborts the current worker \
     run (recorded as partial) before injecting the message — use it when \
     the current work is headed the wrong way.";

Long help for kranz msg (plan §4.5): the queue/interrupt semantics must be documented verbatim in --help.