code: function encodeArray_PRIM_REPEATED( encoder, data ) {
  
  	//
  	// Repeated Primitive Array (PRIM_REPEATED)
  	//
  	// .......  .   + Signature ID
  	// 0111100 [LN]     [16-bit]
  	//
  
  	encoder.counters.arr_prim_repeated+=1;
  	encoder.log(LOG.ARR, "array.prim.repeated, len="+data.length+
  		", peek="+data[0]);
  
  	if (data.length < UINT16_MAX) { // 16-bit length prefix
  		encoder.stream8.write( pack1b( ARR_OP.PRIM_REPEATED | NUMTYPE_LN.UINT16 ) );
  		encoder.stream16.write( pack2b( data.length, false ) );
  		encoder.counters.arr_hdr+=3;
  	} else { // 32-bit length prefix
  		encoder.stream8.write( pack1b( ARR_OP.PRIM_REPEATED | NUMTYPE_LN.UINT32 ) );
  		encoder.stream32.write( pack4b( data.length, false ) );
  		encoder.counters.arr_hdr+=5;
  	}
  
  	// Encode the short array
  	encodePrimitive( encoder, data[0] );
  
  }
docs: Encode array data as one repeated chunk