PHP/Compat

* avoid using "echo" to write to CLI as php mistakes it for sent headers (see php-src #12303)
 * as we are using fwrite now, errors are written to STDERR instead of STDOUT
 * fixes an issue where reloading the config would cause "ini_set(): Session ini settings cannot be changed after headers have already been sent" to be spammed

setup/setup.php

@@ -26,6 +26,7 @@ if (CLISetup::getOpt('delete'))                         // generated with TEMPOR
 
 CLISetup::runInitial();
 
-die("\n");
+fwrite(STDOUT, "\n");
+exit;
 
 ?>