Fixed net-ftp sync task and resync from standalone repo

lib/net/ftp/net-ftp.gemspec

@@ -7,8 +7,8 @@ end
 Gem::Specification.new do |spec|
   spec.name          = "net-ftp"
   spec.version       = Net::Ftp::VERSION
-  spec.authors       = ["Hiroshi SHIBATA"]
-  spec.email         = ["hsbt@ruby-lang.org"]
+  spec.authors       = ["Shugo Maeda"]
+  spec.email         = ["shugo@ruby-lang.org"]
 
   spec.summary       = %q{Support for the File Transfer Protocol.}
   spec.description   = %q{Support for the File Transfer Protocol.}

tool/sync_default_gems.rb

@@ -289,8 +289,11 @@ def sync_default_gems(gem)
     sync_lib "net-imap"
     mv "lib/net-imap.gemspec", "lib/net/imap"
   when "net-ftp"
-    sync_lib "net-ftp"
-    mv "lib/net-ftp.gemspec", "lib/net/ftp"
+    rm_rf(%w[lib/net/ftp.rb lib/net/ftp test/net/ftp])
+    cp_r("#{upstream}/lib/net/ftp.rb", "lib/net")
+    cp_r("#{upstream}/lib/net/ftp", "lib/net")
+    cp_r("#{upstream}/test/net/ftp", "test/net")
+    cp_r("#{upstream}/net-ftp.gemspec", "lib/net/ftp")
   when "net-http"
     rm_rf(%w[lib/net/http.rb lib/net/http test/net/http])
     cp_r("#{upstream}/lib/net/http.rb", "lib/net")