Set the puma.pid to default settings

lib/support/init.d/gitlab.default.example

@@ -26,8 +26,8 @@ pid_path="$app_root/tmp/pids"
 socket_path="$app_root/tmp/sockets"
 
 # web_server_pid_path defines the path in which to create the pid file fo the web_server
-# The default is "$pid_path/unicorn.pid"
-web_server_pid_path="$pid_path/unicorn.pid"
+# The default is "$pid_path/puma.pid"
+web_server_pid_path="$pid_path/puma.pid"
 
 # sidekiq_pid_path defines the path in which to create the pid file for sidekiq
 # The default is "$pid_path/sidekiq.pid"