util.startup: Skip config readability check in migrator (thanks eTaurus)
This field is empty for reasons when invoked by prosody-migrator, which
threw an error:
> bad argument #1 to 'open' (string expected, got nil)
--- a/util/startup.lua Sat Oct 23 13:32:01 2021 +0200
+++ b/util/startup.lua Sat Oct 23 22:24:59 2021 +0200
@@ -487,7 +487,7 @@
if not prosody.switched_user then
-- Boo!
print("Warning: Couldn't switch to Prosody user/group '"..tostring(desired_user).."'/'"..tostring(desired_group).."': "..tostring(err));
- else
+ elseif prosody.config_file then
-- Make sure the Prosody user can read the config
local conf, err, errno = io.open(prosody.config_file); --luacheck: ignore 211/errno
if conf then