Arch Linux

Description:
MidnightCommander uses the ini location of the logged-in user, instead of the user I "su"-ed into.

Additional info:
* package version(s): (i686) community/mc 4.8.1-1 - I also tried current mc-git from aur with the same result (propably broken upstream?)
* config and/or log files etc.: /etc/mc/ configuration files are untouched, mc's logging facilities are propably non-existent :(

Steps to reproduce:
* login as a regular user (let's use "foo" as our regular user)
* run mc and change configuration, I recommend to change something in the directory hotlist (Ctrl + \)
* save your configuration
* quit mc (F10)
* su (to root)
* now run mc in the su enviroment
* (now mc reads the configuration of the regular user "foo")
* NOTE: you can run 'mc -F' to actually see what data directories mc uses
* go to the directory hotlist (Ctrl + \), you should see the hotlist of the logged-in user "foo", not the one you "su"d into
* also if you try to save the configuration, mc clearly states where the config is written - to the user logged in "foo"
* this is reproducible the other way too: login as root and su to some regular user

NOTES:
* this bug has somewhat ugly side effect: if you save the configuration in the su environment then the ownership and the contents of "foo"'s ini files change (obviously)
* I think this is broken upstream, but I report it here first, to make sure that I didn't do something stupid "arch"wise.
* mc's internal cd command (just type in "cd" and enter) changes correctly to the home of the su'd user.