Update cobra dependency to v1.1.1

Cobra v1.1.1 brings improvements to autocompletion needed for ongoing kubectl work.

Signed-off-by: Eddie Zaneski <eddiezane@gmail.com>

vendor/github.com/spf13/cobra/doc/util.go

@@ -20,7 +20,7 @@ import (
 )
 
 // Test to see if we have a reason to print See Also information in docs
-// Basically this is a test for a parent commend or a subcommand which is
+// Basically this is a test for a parent command or a subcommand which is
 // both not deprecated and not the autogenerated help command.
 func hasSeeAlso(cmd *cobra.Command) bool {
 	if cmd.HasParent() {