If the file doesn't already have a description, f->desc may be NULL.
Remove the redundant user name in the "removed file" log message.

This may have contributed to plt's file editing woes.

Fix issue reported by Jay Crutti.

CID 331582

Make it the default.

#pragma clang causes an error
__attribute__ not supported

This uses the 720x400 with 9x16 character cell that always made
BBSs look so terrible.

I do, so you should too!

This fixes issues where "leftovers" from the previous mode would
remain in a new screen mode.

Also, include math.h

Sheesh.

Simplest way is to use the alt-left/right snapping.

Which required a new ciolib option of course.
Only usable in X11 mode at present, though it may land for SDL
this weekend.

Also, we don't need to use pointers for the scaling.

Since we have all odd numbers thanks to the pointy scaler, and we
have 2x thanks to xBR, we should now be able to build any integer
scaling from a combination of those two scalers.

This, of course, assumes you have enough CPU and RAM to actually
do the scaling you want... powers of two will likely be the worst
case for scaling.

Also, do pointy scaling before xBR.

I haven't played with this chat pager in *years*! The lowest tones were inaudible (raise the range from 0-800Hz to 400-1200Hz).
Increase the msgabort() tone from 1 to 10ms, sounds like those computerized voice recognition phone systems now.

Remove the redundant "<user> paged you to chat" notifications (and log message) when turning *off* the chat pager.

by adding a 'clear' argument to msgabort() that defaults to false. Pass true to check-and-clear.
checkline() is a NO-OP, so start eliminating "calls" to it.

... upon console abort (Ctrl-C).

Now, just 'E', then 'D' from the batch flag prompt has you editing a file description - rather than going through all the prompts for uploader name/date, etc.