Clarify some text (thanks to BLF)

latex3 · Jan 8, 2020 · 75dd14e · 75dd14e
1 parent c962403
commit 75dd14e
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/l3kernel/expl3.dtx b/l3kernel/expl3.dtx
@@ -378,8 +378,9 @@
 % \begin{verbatim}
 %   \debug_on:n { check-declarations }
 % \end{verbatim}
-% and will issue an error for \emph{all} assignments, at the cost of
-% performance.
+% and will issue an error whenever an assignment is made to a non-declared
+% variable. There is a performance implication, so this option should only
+% be used for testing.
 %
 % \subsubsection{Variables: scope and type}
 %