1 files changed, 4 insertions, 2 deletions
diff --git a/sample/dir.rb b/sample/dir.rb
index 2465c4d68e..b627383946 100644
--- a/sample/dir.rb
+++ b/sample/dir.rb
@@ -2,8 +2,10 @@
 # list all files but .*/*~/*.o
 dirp = Dir.open(".")
 for f in dirp
-  $_ = f
-  unless (~/^\./ || ~/~$/ || ~/\.o/)
+  case f
+  when /^\./, /~$/, /\.o/
+    # do not print
+  else
     print f, "\n"
   end
 end