On manpage warn of massive --debug output

[jidanni]

On the manpage at

       --debug
              enable debug output.

do add a warning that this will alas spew five times the entire file's worth of bytes upon the screen.

$ ls -og winmail.dat
-rw------- 1 996334 12-05 01:27 winmail.dat
$ tnef --debug --list winmail.dat | wc
    337 1002968 5018665

So add that if the user is not prepared for five megbytes "in the face" he should at least "pipe it to more(1)".

[verdammelt]

Well it is a debug log :)

But point taken; I'll add your recommended warning.