Use block form of 'File.open' so that File object is auto closed at end

1 files changed, 7 insertions, 7 deletions

diff --git a/actionpack/Rakefile b/actionpack/Rakefile
index 75d16ceb05..bb1e704767 100755
--- a/actionpack/Rakefile
+++ b/actionpack/Rakefile
@@ -57,13 +57,13 @@ task :lines do
 
   FileList["lib/**/*.rb"].each do |file_name|
     next if file_name =~ /vendor/
-    f = File.open(file_name)
-
-    while line = f.gets
-      lines += 1
-      next if line =~ /^\s*$/
-      next if line =~ /^\s*#/
-      codelines += 1
+    File.open(file_name, 'r') do |f|
+      while line = f.gets
+        lines += 1
+        next if line =~ /^\s*$/
+        next if line =~ /^\s*#/
+        codelines += 1
+      end
     end
     puts "L: #{sprintf("%4d", lines)}, LOC #{sprintf("%4d", codelines)} | #{file_name}"