🚀 go-pugleaf

I've noticed the "Garbage collecting..." messages in the echo area can be
distracting during a command that's showing real information down there.
Would it be better to indicate garbage collection by changing the first two
characters of the current window's mode line to "GC" instead?

Another semi-related issue:  I noticed the "Garbage collecting..." message
magically restores the original message in the echo area when it goes away.
As far as I can see, there's no way for a user program to do this.  Even
the message-logging routines that were posted recently only see messages
generated from Lisp code.  Would it be possible to have a variable or
function that contains/returns the current echo area contents?  (If it
were a read/write variable, we could use "let" to preserve the echo area's
contents---nifty!)

								-- Dave