rmail-next-error-move

rmail-next-error-move is a compiled Lisp function in `rmail.el'.

(rmail-next-error-move MSG-POS BAD-MARKER)

Move to an error locus (probably grep hit) in an Rmail buffer.
MSG-POS is a marker pointing at the error message in the grep buffer.
BAD-MARKER is a marker that ought to point at where to move to,
but probably is garbage.