Fix doc typo

diff --git a/doc/developers/testsuite.html b/doc/developers/testsuite.html
index 5f43cb2cd1617dadc7282dde34722c5529a427b6..0230c029c027ad56f345c717ba30d7cd99efd020 100644 (file)
--- a/doc/developers/testsuite.html
+++ b/doc/developers/testsuite.html
@@ -621,7 +621,7 @@ category/test.output.4
 
     <p>
       <b>Note:</b> The main comparison file (i.e., the one ending in
-      <code>output</code> is mandatory. Otherwise, no test will be
+      <code>output</code>) is mandatory. Otherwise, no test will be
       configured.
     </p>