add an angrier blurb to sanity_check.php

include/sanity_check.php

 <?php
-	// WARNING: Don't ask for help on tt-rss.org forums or the bugtracker if you have
-	// modified this file.
+	/*
+	 * WARNING!
+	 *
+	 * If you modify this file, you are ON YOUR OWN!
+	 *
+	 * Believe it or not, all of the checks below are required to succeed for
+	 * tt-rss to actually function properly.
+	 *
+	 * If you think you have a better idea about what is or isn't required, feel
+	 * free to modify the file, note though that you are therefore automatically
+	 * disqualified from any further support by official channels, e.g. tt-rss.org
+	 * issue tracker or the forums.
+	 *
+	 * If you come crying when stuff inevitably breaks, you will be mocked and told
+	 * to get out. */
 
 	function make_self_url_path() {
 		$url_path = ($_SERVER['HTTPS'] != "on" ? 'http://' :  'https://') . $_SERVER["HTTP_HOST"] . parse_url($_SERVER["REQUEST_URI"], PHP_URL_PATH);