prosody.cfg.lua.dist: Replace use_libevent with network_backend
Since there are more than two choices now. Hard to describe this choice
in just one line. Maybe this whole block should go away?
--- a/prosody.cfg.lua.dist Fri May 21 19:04:01 2021 +0200
+++ b/prosody.cfg.lua.dist Mon May 24 01:34:01 2021 +0200
@@ -23,9 +23,9 @@
-- Example: admins = { "user1@example.com", "user2@example.net" }
admins = { }
--- Enable use of libevent for better performance under high load
--- For more information see: https://prosody.im/doc/libevent
---use_libevent = true
+-- Prosody includes several alternative modules for keeping track of network connections.
+-- For more information see: https://prosody.im/doc/network_backend
+--network_backend = "epoll"
-- Prosody will always look in its source directory for modules, but
-- this option allows you to specify additional locations where Prosody