X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/7f2a2a43f103bf22970a2b87ad8106f1a57b3d57..555ae6af39312f43b1d38d8da05cf4368b933015:/doc/doc-docbook/spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index aa4be5332..7a3cc8dd6 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -19955,13 +19955,16 @@ This option applies only to deliveries in maildir format, and is described in
 section &<<SECTmaildirdelivery>>& below.
 
 
-.option maildir_use_size_file appendfile boolean false
+.new
+.option maildir_use_size_file appendfile&!! boolean false
 .cindex "maildir format" "&_maildirsize_& file"
-Setting this option true enables support for &_maildirsize_& files. Exim
+The result of string expansion for this option must be a valid boolean value.
+If it is true, it enables support for &_maildirsize_& files. Exim
 creates a &_maildirsize_& file in a maildir if one does not exist, taking the
 quota from the &%quota%& option of the transport. If &%quota%& is unset, the
 value is zero. See &%maildir_quota_directory_regex%& above and section
 &<<SECTmaildirdelivery>>& below for further details.
+.wen
 
 .option maildirfolder_create_regex appendfile string unset
 .cindex "maildir format" "&_maildirfolder_& file"