[kaenv] correctly process --env_version in kaenv

bin/kaenv3

@@ -260,6 +260,7 @@ class KaenvsClient < Client
       tmp[:username] = options[:env_user] || USER
       tmp[:name] = options[:env_name]
       tmp[:arch] = options[:env_arch] if options[:env_arch] && !options[:env_arch].empty?
+      tmp[:version] = options[:env_version] unless options[:env_version].nil?
       tmp[:last] = true unless options[:env_version] || options[:all_versions]
       envs = get2(options, api_path("/", :envs), tmp)
       error("No environment found") if envs.size <= 0