auparse: report feed consumption errors #432

Job	Run time
build-and-test (ubuntu:latest, clang)	1m 28s
build-and-test (ubuntu:latest, gcc)	1m 17s
build-and-test (fedora:latest, gcc)	2m 1s
build-and-test (fedora:latest, clang)	1m 39s
	6m 25s

Provide feedback