bug: resize -s 80 25 made Terminal very unhappy in 4.18.

[Rob Landley]

I keep forgetting the "resize -s" command wants "25 80" instead of "80 
25", and when that happens I have to grab the top border and shrink it 
and drag the window back up several times before I can see everything on 
the screen again.

Fine, pilot error: but after I fix the height, the _width_ of the 
terminal is screwed up and reports that it's narrower than it actually 
is (when I drag to resize it). The problem is the width didn't actually 
change, but THINKS it did, and it stops shrinking when it says it's at 
width 4 but is still actually something like 40 wide. This borked state 
persists until I close all the tabs in that terminal and close and 
reopen the terminal window.

This only happens when I have multiple terminal tabs open, it works fine 
on a terminal that isn't showing tabs. A terminal with no tabs actually 
changes its width, a terminal with tabs doesn't change its width but 
THINKS it did.

Rob

(I'm not sure if I reported this bug before, but it's still there after 
a devuan version upgrade, so I thought I'd poke again...)