This patch, put together by Manuel Novoa III, is a merge of work
done by Evin Robertson (bug#1105) and work from Manuel to make
usage messages occupy less space and simplify how usage messages
are displayed.
diff --git a/miscutils/dutmp.c b/miscutils/dutmp.c
index 7e1d2ee..2e6b3c0 100644
--- a/miscutils/dutmp.c
+++ b/miscutils/dutmp.c
@@ -33,7 +33,7 @@
 	if (argc<2) {
 		file = fileno(stdin);
 	} else if (*argv[1] == '-' ) {
-		usage(dutmp_usage);
+		show_usage();
 	} else  {
 		file = open(argv[1], O_RDONLY);
 		if (file < 0) {
@@ -45,7 +45,7 @@
  * fact the stupid libc doesn't have a reliable #define to announce that libc5
  * is being used.  sigh.
  */
-#if ! defined __GLIBC__
+#if ! defined __GLIBC__ || defined __UCLIBC__
 	while (read(file, (void*)&ut, sizeof(struct utmp))) {
 		printf("%d|%d|%s|%s|%s|%s|%s|%lx\n",
 				ut.ut_type, ut.ut_pid, ut.ut_line,