[zebra] trivial: fix spelling mistake
diff --git a/zebra/debug.c b/zebra/debug.c
index 23c4de3..175029b 100644
--- a/zebra/debug.c
+++ b/zebra/debug.c
@@ -236,7 +236,7 @@
 
 DEFUN (no_debug_zebra_rib_q,
        no_debug_zebra_rib_q_cmd,
-       "no debug zebra rib queueu",
+       "no debug zebra rib queue",
        NO_STR
        DEBUG_STR
        "Zebra configuration\n"