route: Don't leak local $opt.

completions/net-tools

@@ -78,7 +78,7 @@ _route()
     fi
 
     # Remove already given options from completions
-    local i found
+    local opt found i
     for opt in add del -host -net netmask metric mss window irtt reject mod \
         dyn reinstate dev default gw; do
         found=false

test/completion/route.exp

@@ -0,0 +1 @@
+assert_source_completions route

test/lib/completions/route.exp

@@ -0,0 +1,20 @@
+proc setup {} {
+    save_env
+}
+
+
+proc teardown {} {
+    assert_env_unmodified
+}
+
+
+setup
+
+
+assert_complete_any "route "
+
+
+sync_after_int
+
+
+teardown