Don't leak $options from iscsiadm completion, add basic test case.

completions/open-iscsi

@@ -32,6 +32,7 @@ _iscsiadm()
 
     $split && return 0
 
+    local options
     if [[ $COMP_CWORD -gt 1 ]] ; then
         mode=${COMP_WORDS[2]}
 

test/completion/iscsiadm.exp

@@ -0,0 +1 @@
+assert_source_completions iscsiadm

test/lib/completions/iscsiadm.exp

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