Comment 11 for bug 778872

up to date VTE:

$ dpkg -l | grep libvte
ii libvte-2.90-9 1:0.32.1-0ubuntu1 Terminal emulator widget for GTK+ 3.0 - runtime files
ii libvte-2.90-common 1:0.32.1-0ubuntu1 Terminal emulator widget for GTK+ 3.0 - common files
ii libvte-common 1:0.28.2-3ubuntu2 Terminal emulator widget for GTK+ 2.x - common files
ii libvte9 1:0.28.2-3ubuntu2 Terminal emulator widget for GTK+ 2.0 - runtime files

but gnome-terminal still has files open in tmp:

$ lsof -p 4528 | grep tmp
gnome-ter 4528 rojer 22u REG 8,1 405615 5636167 /tmp/vteK48ALW (deleted)
gnome-ter 4528 rojer 23u REG 8,1 32000 5636319 /tmp/vte25BKLW (deleted)
gnome-ter 4528 rojer 24u REG 8,1 658384 5636417 /tmp/vteEKABLW (deleted)
gnome-ter 4528 rojer 25u REG 8,1 28752 5636520 /tmp/vteKM0PLW (deleted)
gnome-ter 4528 rojer 26u REG 8,1 7504 5636554 /tmp/vteAGVQLW (deleted)
...