bug#38307: Lots of important content missing from HTML rendered message

[積丹尼 Dan Jacobson]

Here again gnus and e.g., lynx -dump or w3m -dump show almost entirely
different views of a HTML message.

This is getting just plain dangerous.

What if a HTML message said: Your fired!

Then down below it said "Unless you bring a box of cookies." But that
second line didn't get shown by gnus.

Anyway, gnus shows the <title> (Good!) and even a bonus alt= for the
image at the bottom.

However, gnus doesn't show lots of important text!

All gnus shows is
1.  (*) text/html

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of:

mes.txt.bz2
Description: message

Gnus v5.13
GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.11)
 of 2019-09-23, modified by Debian