fix ncurses program not working properly under putty terminal

The problem is that PuTTY in UTF-8 mode ignores¹ VT100 “Alternate character set” commands, and ncurses attempts to use the “graphical” character set for drawing the GUI. (The box drawing characters are in the same positions as klmqx would normally be.)

export NCURSES_NO_UTF8_ACS=1 it should fix the problem by telling ncurses to always use Unicode box drawing characters when a UTF-8 locale is selected.