K 10
svn:author
V 8
dumbbell
K 8
svn:date
V 27
2014-11-22T16:55:55.447617Z
K 7
svn:log
V 580
vt(4): Adjust the cursor position after changing the window size

A new terminal_set_cursor() is added: it wraps the existing
teken_set_cursor() function.

In vtbuf_grow(), the cursor position is adjusted at the end of the
function. In vt_change_font(), we call terminal_set_cursor() just after
terminal_set_winsize_blank(), while the terminal is mute.

This fixes a bug where, after loading a kernel video driver which
increases the terminal window size, the cursor remains at its old
position, in other words, in the middle of the display content.

PR:		194421
MFC of:		r273932

END