tls: fix minor jslint failure

PR-URL: https://github.com/nodejs/node/pull/9107
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/tls.js

@@ -135,9 +135,10 @@ function check(hostParts, pattern, wildcards) {
     return false;
 
   // Check host parts from right to left first.
-  for (var i = hostParts.length - 1; i > 0; i -= 1)
+  for (var i = hostParts.length - 1; i > 0; i -= 1) {
     if (hostParts[i] !== patternParts[i])
       return false;
+  }
 
   var hostSubdomain = hostParts[0];
   var patternSubdomain = patternParts[0];