use Hash#each instead of Hash#each_pair

There were some old Ruby versions where there was a minor
difference, but they're identical from 1.9 onwards and this
has lower cognitive overhead.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/yahns/server_mp.rb b/lib/yahns/server_mp.rb
index be24152..551cf69 100644
--- a/lib/yahns/server_mp.rb
+++ b/lib/yahns/server_mp.rb
@@ -7,7 +7,7 @@ module Yahns::ServerMP # :nodoc:
   def maintain_worker_count
     (off = @workers.size - @worker_processes) == 0 and return
     off < 0 and return spawn_missing_workers
-    @workers.each_pair do |wpid, worker|
+    @workers.each do |wpid, worker|
       worker.nr >= @worker_processes and Process.kill(:QUIT, wpid)
     end
   end