Promote time.rb to default gems

doc/maintainers.rdoc

@@ -51,8 +51,6 @@ Zachary Scott (zzak)
 [lib/rubygems.rb, lib/rubygems/*]
   Eric Hodel (drbrain), Hiroshi SHIBATA (hsbt)
   https://github.com/rubygems/rubygems
-[lib/time.rb]
-  Tanaka Akira (akr)
 [lib/un.rb]
   WATANABE Hirofumi (eban)
 [lib/unicode_normalize.rb, lib/unicode_normalize/*]
@@ -245,6 +243,9 @@ Zachary Scott (zzak)
 [lib/tempfile.rb]
   _unmaintained_
   https://github.com/ruby/tempfile
+[lib/time.rb]
+  Tanaka Akira (akr)
+  https://github.com/ruby/time
 [lib/timeout.rb]
   Yukihiro Matsumoto (matz)
   https://github.com/ruby/timeout

doc/standard_library.rdoc

@@ -15,7 +15,6 @@ PP:: Provides a PrettyPrinter for Ruby objects
 PrettyPrinter:: Implements a pretty printing algorithm for readable structure
 RbConfig:: Information of your configure and build of Ruby
 Gem:: Package management framework for Ruby
-Time:: Extends the Time class with methods for parsing and conversion
 un.rb:: Utilities to replace common UNIX commands
 
 == Extensions
@@ -75,6 +74,7 @@ Set:: Provides a class to deal with collections of unordered, unique values
 Shellwords:: Manipulates strings with word parsing rules of UNIX Bourne shell
 Singleton:: Implementation of the Singleton pattern for Ruby
 Tempfile:: A utility class for managing temporary files
+Time:: Extends the Time class with methods for parsing and conversion
 Timeout:: Auto-terminate potentially long-running operations in Ruby
 tmpdir.rb:: Extends the Dir class to manage the OS temporary file path
 Tracer:: Outputs a source level execution trace of a Ruby program

lib/time.gemspec

@@ -0,0 +1,22 @@
+Gem::Specification.new do |spec|
+  spec.name          = "time"
+  spec.version       = "0.1.0"
+  spec.authors       = ["Tanaka Akira"]
+  spec.email         = ["akr@fsij.org"]
+
+  spec.summary       = %q{Extends the Time class with methods for parsing and conversion.}
+  spec.description   = %q{Extends the Time class with methods for parsing and conversion.}
+  spec.homepage      = "https://github.com/ruby/time"
+  spec.required_ruby_version = Gem::Requirement.new(">= 2.3.0")
+  spec.licenses      = ["Ruby", "BSD-2-Clause"]
+
+  spec.metadata["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = spec.homepage
+
+  spec.files         = Dir.chdir(File.expand_path('..', __FILE__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^(test|spec|features)/}) }
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+end

tool/sync_default_gems.rb

@@ -76,6 +76,7 @@ REPOSITORIES = {
   securerandom: "ruby/securerandom",
   resolv: "ruby/resolv",
   "resolv-replace": "ruby/resolv-replace",
+  time: "ruby/time",
 }
 
 def sync_default_gems(gem)