1#	$NetBSD: merge.awk,v 1.1 2013/11/22 16:00:45 christos Exp $
2#
3#	@(#)merge.awk	8.3 (Berkeley) 5/25/94
4#
5# merge index entries into one line per label
6$1 == prev {
7	printf ", %s", $2;
8	next;
9}
10{
11	if (NR != 1)
12		printf "\n";
13	printf "%s \t%s", $1, $2;
14	prev = $1;
15}
16END {
17	printf "\n"
18}
19