i.segment: fix https://trac.osgeo.org/grass/changeset/73512 writing out segment ids

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@73559 15284696-431f-4ddb-bdfa-cd5b030d7da7

imagery/i.segment/write_output.c

@@ -36,6 +36,7 @@ int write_ids(struct globals *globals)
 		if (rid > 0) {
 		    if (globals->method == ORM_RG)
 			rid = globals->new_id[rid];
+		    outbuf[col] = rid;
 		    if (maxid < rid)
 			maxid = rid;
 		}