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-rw-r--r--manual/pattern.texi3
1 files changed, 2 insertions, 1 deletions
diff --git a/manual/pattern.texi b/manual/pattern.texi
index da848c340b..d1b9275cf9 100644
--- a/manual/pattern.texi
+++ b/manual/pattern.texi
@@ -2006,7 +2006,8 @@ allocate room for.
 @comment POSIX.2
 @item WRDE_SYNTAX
 There was a syntax error in the input string.  For example, an unmatched
-quoting character is a syntax error.
+quoting character is a syntax error.  This error code is also used to
+signal division by zero and overflow in arithmetic expansion.
 @end table
 @end deftypefun