bin/27483: make sysinstall ask for the keymap at installation time

[Cyrille Lefevre]

anyone to commit this PR ? thanks in advance.

purpose :

at installation time, you may (often) forgot to change the
	keymap.  this may cause a problem when leaving fdisk if
	you're using an AZERTY keyboard. A and Q are inverted. so,
	you could think leaving fdisk while you're allocating all
	space for FreeBSD. of course, there is a warning, but think
	about unexperienced users.

Cyrille Lefevre.
-- 
home: mailto:cyrille.lefevre at laposte.net