No if/unless-modifier on multiline blocks.

1 files changed, 10 insertions, 8 deletions

diff --git a/Library/Homebrew/extend/enumerable.rb b/Library/Homebrew/extend/enumerable.rb
index fededbfca..65be7dc06 100644
--- a/Library/Homebrew/extend/enumerable.rb
+++ b/Library/Homebrew/extend/enumerable.rb
@@ -1,11 +1,13 @@
 module Enumerable
-  def flat_map
-    return to_enum(:flat_map) unless block_given?
-    r = []
-    each do |*args|
-      result = yield(*args)
-      result.respond_to?(:to_ary) ? r.concat(result) : r.push(result)
+  unless method_defined?(:flat_map)
+    def flat_map
+      return to_enum(:flat_map) unless block_given?
+      r = []
+      each do |*args|
+        result = yield(*args)
+        result.respond_to?(:to_ary) ? r.concat(result) : r.push(result)
+      end
+      r
     end
-    r
-  end unless method_defined?(:flat_map)
+  end
 end