ASCII NUL in desc of $body_zerocount (keyword grepability)

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index f8e73839a80c50f81b0d52eb34bff45db827c5c8..0641ad1246cc56a1fda0141508163400fde618ae 100644 (file)
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -10663,7 +10663,7 @@ number of lines in the message's body. See also &$message_linecount$&.
 .cindex "binary zero" "in message body"
 .vindex "&$body_zerocount$&"
 When a message is being received or delivered, this variable contains the
-number of binary zero bytes in the message's body.
+number of binary zero bytes (ASCII NULs) in the message's body.
 
 .vitem &$bounce_recipient$&
 .vindex "&$bounce_recipient$&"