curses: message window border w/ align_status:left

This fixes the missing message window border when restoring with
align_status:left (which narrows and forces that window to the right).
It can't possibly be the correct way to fix things but does work.

This was not a problem with 3.6.4 (the most recent pre-3.7 playground
I have on hand) but I don't have the energy to use 'git bisect' to
track done when it started to whether the cause is discernable.  The
message history is put into place without going through putstr() so
differs from normal message handling.

doc/fixes3-7-0.txt

@@ -1539,6 +1539,9 @@ curses: typing ESC to cancel something issued a beep; if the terminal was set
 	to 'visible bell', the screen flashed; only beep when the ESC is part
 	of an escape sequence--other than M-c generating ESC c--and nethack
 	is expecting text rather than a command or direction
+curses: with window borders on and align_status:left, restoring brought up a
+	screen where the message window's border wasn't shown; once it needed
+	to be scrolled to fit a new message, the border appeared
 Qt: at Xp levels above 20 with 'showexp' On, the combined status field
 	"Level:NN/nnnnnnnn" was too big and truncated by a char at each end
 Qt: searching a text window for something that wasn't found and then searching