1 files changed, 6 insertions, 1 deletions

diff --git a/vendor/github.com/mitchellh/cli/cli.go b/vendor/github.com/mitchellh/cli/cli.go
index a25a582..c2dbe55 100644
--- a/vendor/github.com/mitchellh/cli/cli.go
+++ b/vendor/github.com/mitchellh/cli/cli.go
@@ -87,7 +87,7 @@ type CLI struct {
         // should be set exactly to the binary name that is autocompleted.
         //
         // Autocompletion is supported via the github.com/posener/complete
-        // library. This library supports both bash and zsh. To add support
+        // library. This library supports bash, zsh and fish. To add support
         // for other shells, please see that library.
         //
         // AutocompleteInstall and AutocompleteUninstall are the global flag
@@ -419,6 +419,11 @@ func (c *CLI) initAutocomplete() {
 func (c *CLI) initAutocompleteSub(prefix string) complete.Command {
         var cmd complete.Command
         walkFn := func(k string, raw interface{}) bool {
+                // Ignore the empty key which can be present for default commands.
+                if k == "" {
+                        return false
+                }
+
                 // Keep track of the full key so that we can nest further if necessary
                 fullKey := k