ash: fix set -o to not show "nameless" options

Patch by Martijn Dekker <martijn@inlv.org>

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/shell/ash.c b/shell/ash.c
index c0352602b..305fb6348 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -11091,6 +11091,8 @@ plus_minus_o(char *name, int val)
                 return 1;
         }
         for (i = 0; i < NOPTS; i++) {
+                if (optnames(i)[0] == '\0')
+                        continue;
                 if (val) {
                         out1fmt("%-16s%s\n", optnames(i), optlist[i] ? "on" : "off");
                 } else {