ts: add X11 setup state info to test log

testsuite/modules.00-init/005-init_ts.exp

@@ -725,6 +725,7 @@ if {$xrdb eq ""} {
 } elseif {[catch {exec $xrdb -query} errMsg]} {
     set x11_warn "$x11_warn_prefix\n$error_msgs: $errMsg"
 }
+send_user "\tX11 setup is [expr {[info exists x11_warn] ? {KO} : {OK}}]\n"
 
 # check if domainname binary is available on this system
 set domainname [auto_execok domainname]