exe/conoharant in conoha-0.9.5 vs exe/conoharant in conoha-0.9.6

@@ -13,19 +13,28 @@
   if arg == 'init'
     require 'securerandom'
     File.open('Conoharantfile', 'w') do |f|
       f.write(<<EOF
 os: centos72
-# os: fedora23
+# os: fedora24
 # os: centos67
 # os: debian
 # os: ubuntu
 # os: arch
 ram: g-1gb
 # ram: g-2gb
 # ram: g-4gb
 # ram: g-8gb
+
+# os: centos72-20gb
+# os: fedora24-20gb
+# os: centos67-20gb
+# os: debian-20gb
+# os: ubuntu-20gb
+# os: arch-20gb
+# ram: g-512mb
+
 tagprefix: randomname#{SecureRandom.uuid[0, 8]}
 EOF
       )
     end
     exit 0
@@ -237,10 +246,11 @@
   puts command
   system command
 when 'sftp'
   server_id = status['id']
   ipaddress = ipv4(Conoha.ip_address_of(server_id))
-  command = "sftp #{ipaddress}"
+  user = ARGV[1].nil? ? '' : "#{ARGV[1]}@"
+  command = "sftp #{user}#{ipaddress}"
   puts command
   system command
 when 'ipaddress'
   server_id = status['id']
   puts ipv4(Conoha.ip_address_of(server_id))