Add logging output when starting Wildfly

This commit (which will be reverted soon) adds logging on the output of
starting Wildfly. This is needed to debug an issue with Wildfly not
starting in CI.

qa/wildfly/build.gradle

@@ -122,6 +122,7 @@ task startWildfly {
             String line
             int httpPort = 0
             while ((line = br.readLine()) != null) {
+                logger.info(line)
                 if (line.matches('.*Undertow HTTP listener default listening on .*:\\d+$')) {
                     assert httpPort == 0
                     final int index = line.lastIndexOf(":")