Fix from Matt Kraai -- a better way to NULL terminate strings for the

my_* passwd and group routines.  I should have thought of doing it
this way...

coreutils/logname.c

@@ -25,13 +25,13 @@
 
 extern int logname_main(int argc, char **argv)
 {
-	char *user = xmalloc(9);
+	char user[9];
 
 	if (argc > 1)
 		usage(logname_usage);
 
 	my_getpwuid(user, geteuid());
-	if (user) {
+	if (*user) {
 		puts(user);
 		return EXIT_SUCCESS;
 	}