cleanup: consider version_scheme

`brew cleanup` should cleanup formulae which have the older
version scheme.

1 files changed, 10 insertions, 1 deletions

diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 6df1eb4de..a4ef11276 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -1843,7 +1843,16 @@ class Formula
       eligible_kegs = if head? && (head_prefix = latest_head_prefix)
         installed_kegs - [Keg.new(head_prefix)]
       else
-        installed_kegs.select { |k| pkg_version > k.version }
+        installed_kegs.select do |keg|
+          tab = Tab.for_keg(keg)
+          if version_scheme > tab.version_scheme
+            true
+          elsif version_scheme == tab.version_scheme
+            pkg_version > keg.version
+          else
+            false
+          end
+        end
       end
 
       unless eligible_kegs.empty?