#10 failed display of fileposition after width change

[Stefan Schäfer geb. Weber]

After changing the display width to 32 byte and going
with the cursor to the end of the line the display of
the file offset at the beginning of the line
disappears. Even after resetting the width to 16 Byte
it does not reappear.
While the current position is displayed in the status
line, it isn't really bad.

[Sebastian Biallas]

Logged In: YES
user_id=3437

This is not trivial to fix. As a work-around, you can scroll
with Ctrl-Left / Ctrl-Right to make the offsets visible
again (The '<' chars actually indicate that HT has scrolled
the area to make the cursor visible. But it cant detect when
the window is small enough again to make everything visible).