Mention that @mask requires YAZ 4.2.58

diff --git a/doc/tools.xml b/doc/tools.xml
index ec3bc1b..1fce518 100644 (file)
--- a/doc/tools.xml
+++ b/doc/tools.xml
@@ -868,7 +868,7 @@
         </row>
         <row>
          <entry>mask</entry>
         </row>
         <row>
          <entry>mask</entry>

-         <entry>Masking character</entry>
+         <entry>Masking character. Requires YAZ 4.2.58 or later</entry>

          <entry><literal>#</literal></entry>
         </row>
         <row>
          <entry><literal>#</literal></entry>
         </row>
         <row>