This causes menuconfig to not work, as without the function
return type, gcc will produce a warning.
Fixes:
$ make menuconfig
HOSTCC scripts/kconfig/conf.o
*** Unable to find the ncurses libraries or the
*** required header files.
*** 'make menuconfig' requires the ncurses libraries.
***
*** Install ncurses (ncurses-devel) and try again.
***
make[1]: *** [/home/igor/phones/z3s/uniLoader/scripts/kconfig/Makefile:219: scripts/kconfig/dochecklxdialog] Error 1
Signed-off-by: Igor Belwon <igor.belwon@mentallysanemainliners.org>
