(main): Handle argc < optind.

diff --git a/src/who.c b/src/who.c
index 3f3c42257c00df5986d80ace48d743ac84fe225d..7f07108935e4f0310f0f81817d0a7837148441b5 100644 (file)
--- a/src/who.c
+++ b/src/who.c
@@ -747,6 +747,7 @@ main (int argc, char **argv)
 
   switch (argc - optind)
     {
+    case -1:
     case 0:                    /* who */
       who (UTMP_FILE);
       break;