runtests: fix showing `nghttpx-h3` in the `Env:` log when detected

Ref: #19723
Closes #19728

diff --git a/tests/runtests.pl b/tests/runtests.pl
index 54ac77e2e963620bdaf72736929dd20afc45325c..3d557d1435ed0f199c4d2a01d177e4ce800c208b 100755 (executable)
--- a/tests/runtests.pl
+++ b/tests/runtests.pl
@@ -891,7 +891,7 @@ sub checksystemfeatures {
                       $valgrind?"Valgrind ":"",
                       $run_duphandle?"test-duphandle ":"",
                       $run_event_based?"event-based ":"",
-                      $nghttpx_h3,
+                      $nghttpx_h3?"nghttpx-h3 " :"",
                       $libtool?"Libtool ":"");
     if($env) {
         logmsg "* Env: $env\n";