pkg_version: delegate major, minor, patch methods to :version

Library/Homebrew/pkg_version.rb

@@ -4,11 +4,20 @@ require "version"
 
 class PkgVersion
   include Comparable
+  extend Forwardable
 
   RX = /\A(.+?)(?:_(\d+))?\z/.freeze
 
   attr_reader :version, :revision
 
+  delegate [
+    :major,
+    :minor,
+    :patch,
+    :major_minor,
+    :major_minor_patch,
+  ] => :version
+
   def self.parse(path)
     _, version, revision = *path.match(RX)
     version = Version.create(version)