use require_relative to reduce syscalls at startup

require_relative appeared in Ruby 1.9.2 to speed up load times by
avoiding needless open() syscalls.  This has no effect if you're using
RUBYLIB or the '-I' option when running ruby(1), but avoids searching
paths in other gems.

This does not affect unicorn greatly as unicorn does not activate many
gems, but still leads to reducing ~45 syscalls during startup.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/unicorn/const.rb b/lib/unicorn/const.rb
index 51d7394..26fa62b 100644
--- a/lib/unicorn/const.rb
+++ b/lib/unicorn/const.rb
@@ -41,4 +41,4 @@ module Unicorn::Const
 
   # :startdoc:
 end
-require 'unicorn/version'
+require_relative 'version'