Fix Style/GuardClause.

1 files changed, 3 insertions, 4 deletions

diff --git a/Library/Homebrew/extend/fileutils.rb b/Library/Homebrew/extend/fileutils.rb
index b889f9ded..8b8d21da4 100644
--- a/Library/Homebrew/extend/fileutils.rb
+++ b/Library/Homebrew/extend/fileutils.rb
@@ -89,10 +89,9 @@ module FileUtils
   # A version of mkdir that also changes to that folder in a block.
   def mkdir(name, &_block)
     old_mkdir(name)
-    if block_given?
-      chdir name do
-        yield
-      end
+    return unless block_given?
+    chdir name do
+      yield
     end
   end
   module_function :mkdir