[LyX/master] Cmake tests: Amend a7112690: enable use of html5validator

[Kornel Benko]

commit 88087a3cf506555d1b8258509060f679ac93f6b6
Author: Kornel Benko <kornel at lyx.org>
Date:   Wed Jan 11 06:49:28 2023 +0100

    Cmake tests: Amend a7112690: enable use of html5validator
    
    Also add the Summary-output unconditionaly (e.g. also in case of no error)
---
 development/autotests/export.cmake |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/development/autotests/export.cmake b/development/autotests/export.cmake
index aed57b8..0dedb48 100755
--- a/development/autotests/export.cmake
+++ b/development/autotests/export.cmake
@@ -135,8 +135,8 @@ macro(check_xhtml_validate xhtml_file)
     ERROR_VARIABLE xmlerr
     RESULT_VARIABLE _err)
   file(WRITE "${_outputfile}" ${xmlout})
+  Summary(_err "Validating \"${_outputfile}\"")
   if (_err)
-    Summary(_err "${_err} validating \"${_outputfile}\"")
     MATH(EXPR NO_FAILES "${NO_FAILES}+1")
   endif()
   if (NOT "${xmlout}" STREQUAL "")
@@ -331,7 +331,7 @@ else()
           if (format MATCHES "docbook5")
             check_docbook_jing(${result_file_name})
           else()
-            #check_xhtml_validate(${result_file_name})
+            check_xhtml_validate(${result_file_name})
           endif()
         endif()
         if (XMLLINT_EXECUTABLE)