parsebgp_mrt_decode() returns the new error code PARSEBGP_TRUNCATED_MSG
instead of PARSEBGP_INVALID_MSG, and updates the decoded length, when an MRT
mesage is too short to contain a full BGP message, giving the caller the
option to continue with the next MRT message.
tools/parsebgp takes advantage of this according to its -i option.
parsebgp_mrt_decode() returns the new error code PARSEBGP_TRUNCATED_MSG instead of PARSEBGP_INVALID_MSG, and updates the decoded length, when an MRT mesage is too short to contain a full BGP message, giving the caller the option to continue with the next MRT message.
tools/parsebgp takes advantage of this according to its -i option.
(Example case: routeviews.route-views2.updates.1212316500)