Changed modpol.orgs.list_all to return table not string

modpol_minetest/chatcommands/chatcommands.lua

@@ -56,17 +56,18 @@ regchat(
 })
 
 -- ===================================================================
--- /listorg
--- In Minetest mode,  this code defines a chat command which lists the
+-- /listorgs
+-- In Minetest mode, this code defines a chat command which lists
 -- existing "orgs".
 -- The list shows one "org" per line in the following format:
 -- org_name (member, member, ...)
 
 regchat(
-   "listorg", {
+   "listorgs", {
       privs = {} ,
       func  = function (user, param)
-          return true, "Orgs:\n" .. modpol.orgs.list_all()
+         return true, "Orgs: " ..
+            table.concat(modpol.orgs.list_all(), ", ")
       end
 })