bug#25216: 26.0.50 [regression]; Curly quotes are not found in some sizes of ‘Terminus’ font

[Dmitry Alexandrov]

>> I could not even get yet how to show the current value of a certain
>> fontset.
>
> "M-x describe-fontset" is what you want.

Nice.  It worth brief mentioning in (info "(emacs) Fontsets"), I believe.

diff --git a/doc/emacs/mule.texi b/doc/emacs/mule.texi
index 80b1384..e92aad1 100644
--- a/doc/emacs/mule.texi
+++ b/doc/emacs/mule.texi
@@ -1370,6 +1370,11 @@ display that character properly.  It will display that 
character as a
 hex code or thin space or an empty box instead.  (@xref{Text Display, ,
 glyphless characters}, for details.)
 
+@findex describe-fontset
+  @kbd{M-x describe-fontset} lists the complete range of characters
+and fonts assigned to them in a given fontset.  Its default is the
+fontset used by the current frame.
+
 @node Defining Fontsets
 @section Defining fontsets