webrick/server: use symbol proc

Symbol proc is less code and avoids confusion from variable
naming.

* lib/webrick/server.rb (shutdown): use symbol proc

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56889 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/webrick/server.rb b/lib/webrick/server.rb
index b78014c459..2e7654d9bb 100644
--- a/lib/webrick/server.rb
+++ b/lib/webrick/server.rb
@@ -232,7 +232,7 @@ module WEBrick
     def shutdown
       stop
 
-      alarm_shutdown_pipe {|f| f.close}
+      alarm_shutdown_pipe(&:close)
     end
 
     ##