Merge branch 'js/avoid-split-sideband-message'

The side-band status report can be sent at the same time as the primary payload multiplexed, but the demultiplexer on the receiving end incorrectly split a single status report into two, which has been corrected. * js/avoid-split-sideband-message: test-pkt-line: drop colon from sideband identity sideband: report unhandled incomplete sideband messages as bugs sideband: avoid reporting incomplete sideband messages