Adopt PSR-2 coding style

The Laravel framework adopts the PSR-2 coding style in version 5.1.
Laravel apps *should* adopt this coding style as well. Read the
[PSR-2 coding style guide][1] for more details and check out [PHPCS][2]
to use as a code formatting tool.

[1]: https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md
[2]: https://github.com/squizlabs/PHP_CodeSniffer

app/Http/Controllers/InviteController.php

@@ -29,7 +29,6 @@ use Illuminate\Support\Facades\Input;
 use \Toastr;
 use Carbon\Carbon;
 
-
 class InviteController extends Controller
 {
 
@@ -60,7 +59,8 @@ class InviteController extends Controller
                 //generate a random string using Laravel's str_random helper
                 $code = str_random();
             } //check if the token already exists and if it does, try again
-            while (Invite::where('code', $code)->first());
+            while (Invite::where('code', $code)->first()) {
+            }
 
             //create a new invite record
             $invite = Invite::create([