Do not release information about the PHP version running underneath.

modules/core/hooks/hook_sanitycheck.php

@@ -24,9 +24,9 @@ function core_hook_sanitycheck(&$hookinfo) {
 	}
 	
 	if (version_compare(phpversion(), '5.3', '>=')) {
-		$hookinfo['info'][] = '[core] You are running PHP version ' . phpversion() . '. Great.';
+		$hookinfo['info'][] = '[core] You are running a PHP version suitable for SimpleSAMLphp.';
 	} else {
-		$hookinfo['errors'][] = '[core] You are running PHP version ' . phpversion() . '. SimpleSAMLphp requires version >= 5.3. Please upgrade!';
+		$hookinfo['errors'][] = '[core] You are running an old PHP installation. Please check the requirements for your SimpleSAMLphp version and upgrade.';
 	}
 	
 	$info = array();