# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1680791426 -7200
# Node ID a863e4237b9191b7b978b9a808f52b1d1f463ef1
# Parent  ea4923bebca9403f35346a6937b1a141d91fa7d8
util.set: Change tostring format to {a, b, c}

Makes it easier to make out where the set starts and ends in cases where
it may get embedded and tostring()-ed in a log message.

{ } taken over from util.array for consistency with some other systems
syntax for Sets, e.g. Python

diff -r ea4923bebca9 -r a863e4237b91 util/set.lua
--- a/util/set.lua	Thu Apr 06 16:27:37 2023 +0200
+++ b/util/set.lua	Thu Apr 06 16:30:26 2023 +0200
@@ -186,7 +186,7 @@
 	for item in pairs(items) do
 		s[#s+1] = tostring(item);
 	end
-	return t_concat(s, ", ");
+	return "{"..t_concat(s, ", ").."}";
 end
 
 function set_mt.__freeze(set)