Nothing for me..
my rooted MA6 stock didn't have the file in /system/etc initially, so I created it manually and copied it in there, then rebooted. I didn't see any difference. I'll just remove the file and reboot.
Samsung GS3 Stock Root - 4.3 (No-Knox)
Asus TF101 EOS4 b100/kat96_lidpatch - 4.2.2