Refine usrguide text

base/doc/usrguide.tex

@@ -35,15 +35,15 @@
 \usepackage{url}
 
 \title{\LaTeX\ for authors\\ current version}
-\author{\copyright~Copyright 2020--2024, \LaTeX\ Project Team.\\
+\author{\copyright~Copyright 2020--2025, \LaTeX\ Project Team.\\
    All rights reserved.%
    \footnote{This file may be distributed and/or modified under the
      conditions of the \LaTeX{} Project Public License, either version 1.3c
      of this license or (at your option) any later version. See the source
     \texttt{usrguide.tex} for full details.}%
 }
 
-\date{2025-01-11}
+\date{2025-01-12}
 
 \NewDocumentCommand\cs{m}{\texttt{\textbackslash\detokenize{#1}}}
 \NewDocumentCommand\marg{m}{\arg{#1}}
@@ -837,12 +837,12 @@ \subsection{Using the verbatim argument types}
 
 Some additional details that may be useful for those with more \TeX{}
 knowledge: do not worry if this does not make sense to you! Spaces and tabs are
-stored as active characters. In $8$-bit engines and non-ASCII characters are
-active, whilst other than the letters a--zA--Z, ASCII characters are
+stored as active characters. In $8$-bit engines, non-ASCII characters are
+\enquote{active}, whilst other than the letters a--zA--Z, ASCII characters are
 \enquote{other}. In Unicode engines, non-ASCII codepoints will be either
 letters or \enquote{other}, based on the standard \LaTeX{} settings derived
-from Unicode data. As such, token-based comparisons are likely to fail unless
-set up properly.
+from Unicode data. For token-based comparisons, it is likely that the active
+spaces and tabs should be replaced: this can be done conveniently by expansion.
 
 \subsection{Typesetting verbatim-like material}