Update chapters/packages.tex

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

chapters/packages.tex

@@ -345,7 +345,7 @@ \section{Multilingual Descriptions}\label{multilingual-descriptions}
 \end{itemize}
 
 Comments (delimited as well as rest-of-line) are not translated.
-Only literal strings and concatenations of literals strings are translated.
+Only constructs given entirely by one or more concatenated string literals are translated, using nothing but the operator \lstinline!+! for concatenation.
 In order to have parameter values as part of the texts the special substitution syntax is preferable (see \cref{text} and \cref{variable-replacements}), and translators need to be aware of these substrings in order to make good translations.
 
 \begin{example}